Imides are organic compounds characterized by the presence of a functional group with the structure R-C(=O)-N-R', where R and R' are organic radicals, often found in pharmaceuticals, dyes, and as intermediates in chemical synthesis.
'Bicyclo compounds' in medicinal chemistry refer to organic molecules containing two fused rings, where each ring shares two common atoms, creating a topological structure that resembles two overlapping circles or bicycle tires.
Salts that melt below 100 C. Their low VOLATILIZATION can be an advantage over volatile organic solvents.
A subclass of IMIDES with the general structure of pyrrolidinedione. They are prepared by the distillation of ammonium succinate. They are sweet-tasting compounds that are used as chemical intermediates and plant growth stimulants.
Agents that alleviate ANXIETY, tension, and ANXIETY DISORDERS, promote sedation, and have a calming effect without affecting clarity of consciousness or neurologic conditions. ADRENERGIC BETA-ANTAGONISTS are commonly used in the symptomatic treatment of anxiety but are not included here.
Eight-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.
Spectrophotometry in the infrared region, usually for the purpose of chemical analysis through measurement of absorption spectra associated with rotational and vibrational energy levels of molecules. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)

Safety and efficacy of using a single agent or a phase II agent before instituting standard combination chemotherapy in previously untreated metastatic breast cancer patients: report of a randomized study--Cancer and Leukemia Group B 8642. (1/228)

PURPOSE: We undertook a prospective, randomized phase III trial to evaluate the safety and efficacy of using a phase II agent before initiating therapy with standard combination chemotherapy in metastatic breast cancer patients. PATIENTS AND METHODS: A total of 365 women with measurable metastatic breast cancer, previously untreated with chemotherapy for their metastatic disease, were randomized to receive either immediate chemotherapy with cyclophosphamide, doxorubicin, and fluorouracil (CAF) or up to four cycles of one of five sequential cohorts of single-agent drugs: trimetrexate, melphalan, amonafide, carboplatin, or elsamitrucin, followed by CAF. RESULTS: The toxicity of each single agent followed by CAF was comparable to that of CAF alone. The cumulative response rates for the single agent followed by CAF were not statistically different from those of CAF alone (44% v 52%; P = .24). However, in the multivariate analysis, patients with visceral disease had a trend toward lower response rates on the phase II agent plus CAF arm (P = .078). Although survival and response duration also were not statistically significantly different between the two study arms (P = .074 and P = .069, respectively), there was a suggestion of benefit for the CAF-only arm. CONCLUSION: The brief use of a phase II agent, regardless of its efficacy, followed by CAF resulted in response rates, toxicities, durations of response, and survival statistically equivalent to those seen with the use of CAF alone. These findings support the use of a new paradigm for the evaluation of phase II agents in the treatment of patients with metastatic breast cancer.  (+info)

Cyclic-imide-hydrolyzing activity of D-hydantoinase from Blastobacter sp. strain A17p-4. (2/228)

The cyclic-imide-hydrolyzing activity of a prokaryotic cyclic-ureide-hydrolyzing enzyme, D-hydantoinase, was investigated. The enzyme hydrolyzed cyclic imides with bulky substituents such as 2-methylsuccinimide, 2-phenylsuccinimide, phthalimide, and 3,4-pyridine dicarboximide to the corresponding half-amides. However, simple cyclic imides without substituents, which are substrates of imidase (ie.g., succinimide, glutarimide, and sulfur-containing cyclic imides such as 2,4-thiazolidinedione and rhodanine), were not hydrolyzed. The combined catalytic actions of bacterial D-hydantoinase and imidase can cover the function of a single mammalian enzyme, dihydropyrimidinase. Prokaryotic D-hydantoinase also catalyzed the dehyrative cyclization of the half-amide phthalamidic acid to the corresponding cyclic imide, phthalimide. The reversible hydrolysis of cyclic imides shown by prokaryotic D-hydantoinase suggested that, in addition to pyrimidine metabolism, it may also function in cyclic-imide metabolism.  (+info)

Dimethyl adipimidate: a new antisickling agent. (3/228)

A new approach to the prevention of sickling in vitro by use of the bifunctional crosslinking reagent, dimethyl adipimidate, is described. Prior treatment of sickle erythrocytes with dimethyl adipimidate will inhibit sickling in completely deoxygenated erythrocytes. Treated erythrocytes do not demonstrate the potassium loss and viscosity increase that usually accompany sickling. The oxygen affinity of hemoglobin in these cells is increased independently from changes in the concentration of 2,3-diphosphoglycerate. The hemoglobin obtained from treated erythrocytes contains a high-molecular-weight component as well as additional positively charged components. The relative degree to which chemical modification and/or crosslinking is an essential part of the antisickling properties of the material is not known.  (+info)

Investigation of the organization of rhodopsin in the sheep photoreceptor membrane by using cross-linking reagents. (4/228)

The organization of rhodopsin in the photoreceptor membrane of sheep rod outer segments was investigated by using a variety of bifunctional reagents. Of the nine reagents used, seven gave oligomeric opsin species, whereas two, copper phenanthroline and dithiobisphenyl azide, failed to cross-link the protein. In general, the cross-linked species obtained showed diminishing yields from dimer to tetramer, together with some higher-molecular-weight aggregates. It is proposed that the patterns of cross-linking arise as a result of collision complexes and best describe a monomeric organization for native rhodopsin. No significant differences between the patterns obtained with dark-adapted bleached or regenerated protein states were observed. This interpretation is discussed in relation to the postulated mechanism of action of rhodopsin.  (+info)

Biphasic effect of bimoclomol on calcium handling in mammalian ventricular myocardium. (5/228)

1. Concentration-dependent effects of bimoclomol, the novel heat shock protein coinducer, on intracellular calcium transients and contractility were studied in Langendorff-perfused guinea-pig hearts loaded with the fluorescent calcium indicator dye Fura-2. Bimoclomol had a biphasic effect on contractility: both peak left ventricular pressure and the rate of force development significantly increased at a concentration of 10 nM or higher. The maximal effect was observed between 0.1 and 1 microM, and the positive inotropic action disappeared by further increasing the concentration of bimoclomol. The drug increased systolic calcium concentration with a similar concentration-dependence. In contrast, diastolic calcium concentration increased monotonically in the presence of bimoclomol. Thus low concentrations of the drug (10 - 100 nM) increased, whereas high concentrations (10 microM) decreased the amplitude of intracellular calcium transients. 2. Effects of bimoclomol on action potential configuration was studied in isolated canine ventricular myocytes. Action potential duration was increased at low (10 nM), unaffected at intermediate (0.1 - 1 microM) and decreased at high (10 - 100 microM) concentrations of the drug. 3. In single canine sarcoplasmic calcium release channels (ryanodine receptor), incorporated into artificial lipid bilayer, bimoclomol significantly increased the open probability of the channel in the concentration range of 1 - 10 microM. The increased open probability was associated with increased mean open time. The effect of bimoclomol was again biphasic: the open probability decreased below the control level in the presence of 1 mM bimoclomol. 4. Bimoclomol (10 microM - 1 mM) had no significant effect on the rate of calcium uptake into sarcoplasmic reticulum vesicles of the dog, indicating that in vivo calcium reuptake might not substantially be affected by the drug. 5. In conclusion, the positive inotropic action of bimoclomol is likely due to the activation of the sarcoplasmic reticulum calcium release channel in mammalian ventricular myocardium.  (+info)

Tethered naphthalene diimide-based intercalators for DNA triplex stabilization. (6/228)

The synthesis and triplex stabilizing properties of oligodeoxyribonucleotides functionalized at the 5'- and/or 3'-termini with a naphthalene diimide-based (NDI) intercalator is described. The NDI intercalator was prepared in a single step from the corresponding dianhydride and was attached to the 5'-terminus of an oligodeoxyribonucleotide following a reverse coupling procedure. The DMT protecting group was removed and the sequence phosphitylated to generate the phosphoramidite derivative on the 5'-terminus of the support-bound oligodeoxyribonucleotide. The NDI intercalator with a free hydroxyl was then added in the presence of tetrazole. Attachment of the NDI to the 3'-terminus relied upon a tethered amino group that could be functionalized first with the naphthalene dianhydride, which was subsequently converted to the diimide. Using both procedures, an oligonucleo-tide conjugate was prepared having the NDI intercalator at both the 5'- and 3'-termini. Thermal denaturation studies were used to determine the remarkable gain in stability for triplexes formed when the NDI-conjugated oligonucleotide was present as the third strand in the complex.  (+info)

A novel amidase (half-amidase) for half-amide hydrolysis involved in the bacterial metabolism of cyclic imides. (7/228)

A novel amidase involved in bacterial cyclic imide metabolism was purified from Blastobacter sp. strain A17p-4. The enzyme physiologically functions in the second step of cyclic imide degradation, i.e., the hydrolysis of monoamidated dicarboxylates (half-amides) to dicarboxylates and ammonia. Enzyme production was enhanced by cyclic imides such as succinimide and glutarimide but not by amide compounds which are conventional substrates and inducers of known amidases. The purified amidase showed high catalytic efficiency toward half-amides such as succinamic acid (K(m) = 6.2 mM; k(cat) = 5.76 s(-1)) and glutaramic acid (K(m) = 2.8 mM; k(cat) = 2.23 s(-1)). However, the substrates of known amidases such as short-chain (C(2) to C(4)) aliphatic amides, long-chain (above C(16)) aliphatic amides, amino acid amides, aliphatic diamides, alpha-keto acid amides, N-carbamoyl amino acids, and aliphatic ureides were not substrates for the enzyme. Based on its high specificity toward half-amides, the enzyme was named half-amidase. This half-amidase exists as a monomer with an M(r) of 48,000 and was strongly inhibited by heavy metal ions and sulfhydryl reagents.  (+info)

Phage Q-beta ribonucleic acid replicase. Subunit relationships determined by intramolecular cross-linking. (8/228)

Phage Qbeta replicase is composed of four subunits of molecular weights 70,000, 65,000, 45,000, and 35,000. Treatment of the enzyme with protein cross-linking reagents results in formation of three covalently bound complexes of molecular weights 215,000, 135,000, and 80,000. Analysis of the two larger complexes formed by cross-linking with a reversible cross-linker (methyl-4-mercaptobutyrimidate) demonstrates that the 215,000 molecular weight complex is composed of one each of the replicase subunits, while the 135,000 molecular weight complex is composed of the two larger subunits. The 80,000 molecular weight complex was shown to be made up of the two smaller subunits by cross-linking these two subunits in the absence of the larger pair. Increasing ionic strength stabilizes the large complex at the expense of the two smaller complexes. The presence of stoichiometric amounts of Qbeta RNA during cross-linking dramatically reduces formation of the large complex; other natural and synthetic RNAs reduce the formation of this complex to a lesser extent.  (+info)

I'm not aware of a medical definition for the term "imides." It is a chemical term that refers to a specific type of organic compound containing a functional group with the structure R-C(=O)-N-R', where R and R' are organic groups, and the nitrogen atom is bonded to two organic groups. This term is more commonly used in chemistry and biochemistry rather than in medical contexts.

Bicyclic compounds are organic molecules that contain two rings in their structure, with at least two common atoms shared between the rings. These compounds can be found in various natural and synthetic substances, including some medications and bioactive molecules. The unique structure of bicyclic compounds can influence their chemical and physical properties, which may impact their biological activity or reactivity.

Ionic liquids are not a medical term, but rather a term used in the field of chemistry and physics. They refer to salts that exist in the liquid state at temperatures below 100 degrees Celsius. Ionic liquids are composed entirely of ions and have unique properties such as low volatility, high thermal stability, and good conductivity, making them useful in various applications including chemical reactions, energy storage, and biomedical devices. However, they do not have a direct relation to medical definitions or healthcare.

Succinimides are a group of anticonvulsant medications used to treat various types of seizures. They include drugs such as ethosuximide, methsuximide, and phensuximide. These medications work by reducing the abnormal electrical activity in the brain that leads to seizures.

The name "succinimides" comes from their chemical structure, which contains a five-membered ring containing two nitrogen atoms and a carbonyl group. This structure is similar to that of other anticonvulsant medications, such as barbiturates, but the succinimides have fewer side effects and are less likely to cause sedation or respiratory depression.

Succinimides are primarily used to treat absence seizures, which are characterized by brief periods of staring and lack of responsiveness. They may also be used as adjunctive therapy in the treatment of generalized tonic-clonic seizures and other types of seizures.

Like all medications, succinimides can cause side effects, including nausea, vomiting, dizziness, headache, and rash. More serious side effects, such as blood dyscrasias, liver toxicity, and Stevens-Johnson syndrome, are rare but have been reported. It is important for patients taking succinimides to be monitored regularly by their healthcare provider to ensure safe and effective use of the medication.

Anti-anxiety agents, also known as anxiolytics, are a class of medications used to manage symptoms of anxiety disorders. These drugs work by reducing the abnormal excitement in the brain and promoting relaxation and calmness. They include several types of medications such as benzodiazepines, azapirone, antihistamines, and beta-blockers.

Benzodiazepines are the most commonly prescribed anti-anxiety agents. They work by enhancing the inhibitory effects of a neurotransmitter called gamma-aminobutyric acid (GABA) in the brain, which results in sedative, hypnotic, anxiolytic, anticonvulsant, and muscle relaxant properties. Examples of benzodiazepines include diazepam (Valium), alprazolam (Xanax), lorazepam (Ativan), and clonazepam (Klonopin).

Azapirones are a newer class of anti-anxiety agents that act on serotonin receptors in the brain. Buspirone (Buspar) is an example of this type of medication, which has fewer side effects and less potential for abuse compared to benzodiazepines.

Antihistamines are medications that are primarily used to treat allergies but can also have anti-anxiety effects due to their sedative properties. Examples include hydroxyzine (Vistaril, Atarax) and diphenhydramine (Benadryl).

Beta-blockers are mainly used to treat high blood pressure and heart conditions but can also help manage symptoms of anxiety such as rapid heartbeat, tremors, and sweating. Propranolol (Inderal) is an example of a beta-blocker used for this purpose.

It's important to note that anti-anxiety agents should be used under the guidance of a healthcare professional, as they can have side effects and potential for dependence or addiction. Additionally, these medications are often used in combination with psychotherapy and lifestyle modifications to manage anxiety disorders effectively.

I'm sorry for any confusion, but "octanes" is not a medical term. It is a term used in chemistry and physics, particularly in reference to fuel. Octane is a hydrocarbon molecule found in gasoline, and it is used as a measure of the fuel's ability to resist engine knocking or pinging during combustion.

The octane rating of gasoline typically ranges from 87 (regular) to 91-93 (premium). Higher-octane fuels are often recommended for high-performance vehicles that have higher compression ratios in their engines. If you have any questions related to medical terminology, I'd be happy to help!

Spectrophotometry, Infrared is a scientific analytical technique used to measure the absorption or transmission of infrared light by a sample. It involves the use of an infrared spectrophotometer, which directs infrared radiation through a sample and measures the intensity of the radiation that is transmitted or absorbed by the sample at different wavelengths within the infrared region of the electromagnetic spectrum.

Infrared spectroscopy can be used to identify and quantify functional groups and chemical bonds present in a sample, as well as to study the molecular structure and composition of materials. The resulting infrared spectrum provides a unique "fingerprint" of the sample, which can be compared with reference spectra to aid in identification and characterization.

Infrared spectrophotometry is widely used in various fields such as chemistry, biology, pharmaceuticals, forensics, and materials science for qualitative and quantitative analysis of samples.

H2O Certain imides can also be prepared in the isoimide-to-imide Mumm rearrangement. For imides derived from ammonia, the N-H ... Being highly polar, imides exhibit good solubility in polar media. The N-H center for imides derived from ammonia is acidic and ... The parent imide (NH2-) is an intermediate in nitrogen fixation by synthetic catalysts. "Imides". IUPAC Compendium of Chemical ... The toughness of these materials reflects the rigidity of the imide functional group. Interest in the bioactivity of imide- ...
... is an inorganic compound with the chemical formula Li2NH. This white solid can be formed by a reaction between ... Lithium imide is strongly basic and deprotonates even some extremely weak acids such as methane and ammonia, due to the very ... 2 Li2NH → LiNH2 + Li3N Lithium imide is thought to have a simple face-centered cubic structure with a Fm3m space group; with N- ... Inorganic imides, Lithium compounds, Nitrogen(−III) compounds, Hydrogen compounds, All stub articles, Inorganic compound stubs) ...
These are possible because the amide-imide contains acid functionality. The polyamide-imides used for molded articles are also ... A prominent distributor of polyamide-imides is Solvay Specialty Polymers, which uses the trademark Torlon. Polyamide-imides ... Polyamide-imides are commercially used for coatings and molded articles. The product used mainly for coatings is sold in a ... Polyamide-imides are used extensively as wire coatings in making magnet wire. They are prepared from isocyanates and TMA ( ...
The inorganic imides are compounds containing an ion composed of nitrogen bonded to hydrogen with formula HN2−. Organic imides ... Magnesium imide itself decomposes if heated between 455 and 490 °C. Beryllium imide forms from beryllium amide when heated to ... When covalently bound to a metal, an imide ligand produces a transition metal imido complex. When the hydrogen of the imide ... When hydrogen is added to the imide, amides and hydrides are produced. When imides are heated, they can yield hydridonitrides ...
... is the inorganic compound with the formula S7NH. It is a pale yellow solid that is, like elemental sulfur, ... The compound, which is only of academic interest, is representative of a family of sulfur imides (or azacyclosulfanes or ... Becke-Goehring, Margot; Fluck, Ekkehard "Heptasulfur imide" Inorganic Syntheses 1966, vol. 8, 103-5. doi:10.1002/9780470132395. ... "Redetermination of the crystal and molecular structure of heptasulfur imide, S7NH" Zeitschrift für Anorganische und Allgemeine ...
Phosphine imides can be isolated as intermediates in the Staudinger reaction and have also been prepared by the action of ... In chemistry a phosphine imide (sometimes abbreviated to phosphinimide) also known as a iminophosphorane is a functional group ...
... s (IMiDs) are a class of immunomodulatory drugs (drugs that adjust immune responses) containing an ... The name "IMiD" alludes to both "IMD" for "immunomodulatory drug" and the forms imide, imido-, imid-, and imid. The development ... imide group. The IMiD class includes thalidomide and its analogues (lenalidomide, pomalidomide, and iberdomide). These drugs ...
... , often simply referred to as LiTFSI, is a hydrophilic salt with the chemical formula ... imide Solutions". Journal of Chemical & Engineering Data. American Chemical Society (ACS). 62 (7): 2056-2066. doi:10.1021/acs. ...
... is an ionic liquid that is produced by Solvent Innovation, now part of ... See PubChem "Methyltrioctylammonium bis(trifluoromethylsulfonyl)imide". pubchem.ncbi.nlm.nih.gov. Retrieved 12 December 2021. ...
Ames, D. E.; Grey, T. F. (1955). "N-Hydroxy-imides. Part II. Derivatives of homophthalic and phthalic acid". J. Chem. Soc.: ...
... is a chemical compound used to produce polyamide-imide plastic. Mellitic acid Trimellitic ... anhydride Margolis, James (2006). "12 Polyamide-imide (PAI)". Engineering Plastics Handbook (1st ed.). Mcgraw-Hill. doi:10.1036 ...
Many methods are available for the cleavage of the auxiliary: Upon construction of the imide, both syn- and anti-selective ... A key limitation to the chiral auxiliary approach described previously is the failure of N-acetyl imides to react selectively. ... Evans, D. A.; Clark J.S.; Metternich R.; Sheppard G.S. (1990). "Diastereoselective aldol reactions using .beta.-keto imide ... and the resulting carbonyl compound is an imide. A number of oxazolidinones are now readily available in both enantiomeric ...
A. Pinner, F. Klein; Klein (1877). "Umwandlung der Nitrile in Imide". Berichte der deutschen chemischen Gesellschaft. 10 (2): ... A. Pinner (1883). "Ueber die Umwandlung der Nitrile in Imide". Berichte der deutschen chemischen Gesellschaft. 16 (2): 1643- ... Klein; Klein (1878). "Umwandlung der Nitrile in Imide". Berichte der deutschen chemischen Gesellschaft. 11 (2): 1475-1487. doi: ...
Diaham, S; Locatelli, M-L (2013-04-18). "Dielectric properties of polyamide-imide". Journal of Physics D: Applied Physics. 46 ( ...
... s and Imides". Nomenclature of Organic Compounds. 1974. pp. 166-173. doi:10.1021/ba-1974-0126.ch021. ISBN 9780841201910 ...
"Reductive Heck Reactions of N-Methyl-substituted Tricyclic Imides". Molecules. 15 (3): 1302-1308. doi:10.3390/molecules15031303 ...
... pyridine Iron Imides". Journal of the American Chemical Society. 128 (16): 5302-5303. doi:10.1021/ja057165y. ISSN 0002-7863. ...
Imides: Medicinal, Agricultural, Synthetic Applications and Natural Products Chemistry. Elsevier Science. pp. 361-. ISBN 978-0- ...
"Amnesia-reversal activity of a series of cyclic imides". Journal of Medicinal Chemistry. 30 (3): 498-503. doi:10.1021/ ...
Evans, David Albert; Morrissey, Michael M.; Dorow, Roberta L. (1985-07-01). "Asymmetric oxygenation of chiral imide enolates. A ...
Evans, D. A.; Morrissey, M. M.; Dorow, R. L. (1985). "Asymmetric oxygenation of chiral imide enolates. A general approach to ...
Imides are structurally related analogues, where the bridging oxygen is replaced by nitrogen. They are similarly formed by the ... Thermal properties of polyester-imide varnishes". Journal of Applied Polymer Science. 35 (6): 1433-1439. doi:10.1002/app. ... Faghihi, Khalil; Ashouri, Mostafa; Hajibeygi, Mohsen (2013-10-25). "High Temperature and Organosoluble Poly(amide-imide)s Based ...
Kresze, G.; Wucherpfennig, W., "Organic synthesis with imides of sulfur dioxide", Angew. Chem. Int. Ed. Engl. 1967, volume 6, ...
These phosphazenes are also known as iminophosphoranes and phosphine imides. They are superbases. Another class of compounds ...
Chromic acid degradation yields imides I, II, IIIa, and IIIb. Differences in the non-hydrolytic degradation and in polarity ...
It describes a 1,3(O-N) acyl transfer of an acyl imidate or isoimide group to an imide. The reaction is of relevance as part of ... Schwarz, J. P. (1972). "Preparation of acyclic isoimides and their rearrangement rates to imides". The Journal of Organic ...
"Organic synthesis with imides of sulfur dioxide", Angew. Chem. Int. Ed. Engl. 1967, volume 6, 149-167. doi:10.1002/anie. ...
Poly(ester imides) contain an aromatic imide group in the repeat unit, the imide-based polymers have a high proportion of ... Lienert KW (1999). "Poly (ester-imide)s for industrial use". In Kricheldorf HR (ed.). Progress in Polyimide Chemistry II. ...
In chemistry imidines are a rare functional group, being the nitrogen analogues of anhydrides and imides. They were first ... The compounds are highly moisture sensitive and can be converted into imides upon exposure to water. Amidine Guanidines Pinner ... A. (January 1883). "Ueber die Umwandlung der Nitrile in Imide. Verhalten der Blausäure und des Aethylencyanids gegen Salzsäure ...
Acylation of a chiral oxazolidinone with propanoyl chloride Deprotonation at the α-carbon of an oxazolidinone imide with a ... Evans, D. A.; Ennis, M. D.; Mathre, D. J. (1982). "Asymmetric Alkylation Reactions of Chiral Imide Enolates. A Practical ... Alkylation of an oxazolidinone imide with benzyl bromide Activated electrophiles, such as allylic or benzylic halides, are very ... Transformation of an oxazolidinone imide to different functional groups Camphorsultam, or Oppolzer's sultam, is a classic ...
H2O Certain imides can also be prepared in the isoimide-to-imide Mumm rearrangement. For imides derived from ammonia, the N-H ... Being highly polar, imides exhibit good solubility in polar media. The N-H center for imides derived from ammonia is acidic and ... The parent imide (NH2-) is an intermediate in nitrogen fixation by synthetic catalysts. "Imides". IUPAC Compendium of Chemical ... The toughness of these materials reflects the rigidity of the imide functional group. Interest in the bioactivity of imide- ...
In @A00134@ nomenclature, in which imide is analogous to oxide, the term is used to name compounds of the type R3Y+-N−R (Y = N ... Citation: imides in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006 ...
Reaction of NacNacGa with azide N3SiMe3 results in the generation of a transient imide NacNacGa( [[double bond, length as m- ... Reaction of NacNacGa with azide N3SiMe3 results in the generation of a transient imide NacNacGa(. NSiMe3) that can cleave ... Facile C-H bond activation on a transient gallium imide A. Kassymbek, D. Spasyuk, A. Dmitrienko, M. Pilkington and G. I. ...
This graph shows the total number of publications written about "Imides" by people in this website by year, and whether "Imides ... "Imides" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical Subject Headings) ... Below are the most recent publications written about "Imides" by people in Profiles. ...
This study covers the world outlook for polyamide-imide resins across more than - Market research report and industry analysis ... The 2023-2028 World Outlook for Polyamide-Imide Resins The 2023-2028 World Outlook for Polyamide-Imide Resins ... The 2023-2028 World Outlook for Polyamide-Imide Resins. This study covers the world outlook for polyamide-imide resins across ... The 2023-2028 World Outlook for Polyamide-Imide Resins. Best Price Guarantee. Length. Publisher. Published Date. SKU. ...
English synonyms, antonyms, sound-alike, and rhyming words for imide
EP-0379228-B1 chemical patent summary.
Synthesis and biological evaluation of N-substituted polycyclic imides derivatives. 2013-08-28. Synthesis and biological ... evaluation of N-substituted polycyclic imides derivatives.. 322.65 kB , 21 grudnia 2017 ...
The use of chiral imides 6 and 7 in the synthesis of the ansa-antibiotic macbecin-I (1) is described. The synthesis makes use ... I. Asymmetric Alkylation Reactions of Chiral Imide Enolates. II. Efforts Directed Toward the Total Synthesis of (+)-Macbecin I ... Reaction of the alkali metal enolates derived from these chiral imides with alkyl halides and acid chlorides exhibit high ... Ennis, Michael Dalton (1983) I. Asymmetric Alkylation Reactions of Chiral Imide Enolates. II. Efforts Directed Toward the Total ...
The IUPAC Compendium of Chemical Terminology
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... , Journal of Colloid and Interface Science, July 2008, Elsevier, DOI: 10.1016/j. ...
... thermally stable polyamide-imide polymer. This improved insulation is unsurpassed in scrape and abrasion resistance. ... Amide-Imide magnet wire is manufactured utilizing a tough, ... Amide-Imide (AI), used as a "solecoat" insulation, is an ... Amide-Imide magnet wire is manufactured utilizing a tough, thermally stable polyamide-imide polymer. This improved insulation ... Amide-Imide insulations have long been used as the"topcoat" protective layer on our popular GP/MR-200®product. ...
... imide. Vi fremmer videnskab ved at tilbyde produktudvalg, serviceydelser, proces ekspertise og personale til at eksekvere. ...
... imides which includes Methylimidazolium, Dimethylimidazolium, Ethylimidazolium, Ethyl-3-methylimidazolium, Dimethylimidazolium ... 1-Benzyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 99%. Chemical formulae- C13H13F6N3O4S2 CAS NO- 433337-24-7 ... 1-Ethyl-3-propylimidazolium bis(trifluoromethylsulfonyl)imide, 98%. Chemical formulae- C10H15F6N3O4S2 CAS NO- 347882-21-7 ... 1-Butyl-3-ethylimidazolium bis(trifluoromethylsulfonyl)imide, 98%. Chemical formulae- C11H17F6N3O4S2 CAS NO- 174899-89-9 ...
... polyamide imides - For the formulation of protective varnishes and paints. Ask us now! ...
Relative Hydrogen-Bonding Affinities of Imides and Lactams. / Jeong, K. S.; Tjivikua, T.; Rebek, J. In: Journal of the American ... Jeong, K. S. ; Tjivikua, T. ; Rebek, J. / Relative Hydrogen-Bonding Affinities of Imides and Lactams. In: Journal of the ... Jeong KS, Tjivikua T, Rebek J. Relative Hydrogen-Bonding Affinities of Imides and Lactams. Journal of the American Chemical ... Jeong, K. S., Tjivikua, T., & Rebek, J. (1990). Relative Hydrogen-Bonding Affinities of Imides and Lactams. Journal of the ...
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https://image.makewebeasy.net/makeweb/0/AT452EISp/Document/N_Pentyl_N_Methylpiperidinium_bis_trifluoromethylsulfonyl_imide.pdf ...
... imide (LiTFSI), used as a p-dopant to enhance the conductivity and hole mobility of the Spiro-OMeTAD for perovskite cells. ... Chemical structure of Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). Device structure. FTO/c-TiO2/mp-Al2O3/CH3NH3PbBr3−x ... 19F NMR of Lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in d6-DMSO (see full version). Literature and Reviews. * ... Lithium bis(trifluoromethylsulphonyl)imide (LiTFSI) is normally used as a p-dopant to enhance the conductivity and hole ...
Infusion Processing of Phenylethynyl Terminated Imides by High Temperature RTM and VARTM ... Isayev, Avraam, "Infusion Processing of Phenylethynyl Terminated Imides by High Temperature RTM and VARTM" (2011). Polymer ... Infusion Processing of Phenylethynyl Terminated Imides by High Temperature RTM and VARTM ... Infusion Processing of Phenylethynyl Terminated Imides by High Temperature RTM and VARTM ...
2-Benzenedisulfonic Imide. View more information of 1,2-Benzenedisulfonic Imide including solubility, storage condition etc and ... 1,2-Benzenedisulfonic Imide (cas# 4482-01-3) is a useful research chemical. ...
... delivers the new standard in dimension-ally stable machined polyamide-imide resins for innovative, problem solving, and ... Chemically, Symmtamide is a Poly (Amide-Imide). The combination of aromatic group and imide linkages is responsible for the ... PAI (polyamide-imide) is an extremely strong and stiff plastic material. […]. Alflon Series PTFE/PPS Alloys. ALFLON A/SM AND JE ... Dimension-ally stable machined polyamide-imide resins. Symmtek Polymers™ delivers the new standard in dimension-ally stable ...
Verdianz, T., Simbürger, H., & Liska, R. (2006). Surface modification of imide containing polymers II: Co-rective groups. ...
There are 5 letters in string imide and we found that we can make around 16 words from the letters contained in the string: I M ... We have included all anagrams, words that you can make by rearranging letters ( I M I D E) in string imide. This page contains ... a comprehensive list of scrabble words that you can form by different permutation of letters in the word: imide. Use the list ...
Imide product market, With strict quality control Electronic Chemicals factories, Producing high quality Electronic Chemicals ... Imide factory from China, Chinas leading CAS 90076-65-6 Electronic Chemicals LiTFSI Lithium-Bis(Trifluoromethanesulphonyl) ... Lithium bis(trifluoromethylsulphonyl)imide (LiTFSI) is normally used as a p-dopant to enhance the conductivity and hole ... Home /Electronic Chemicals/CAS 90076-65-6 Electronic Chemicals LiTFSI Lithium-Bis(Trifluoromethanesulphonyl)Imide ...
Baek, J. B., Qin, H., Mather, P. T., & Tan, L. S. (2002). A new hyperbranched poly(arylene-ether-ketone-imide): Synthesis, ... Baek, JB, Qin, H, Mather, PT & Tan, LS 2002, A new hyperbranched poly(arylene-ether-ketone-imide): Synthesis, chain-end ... T1 - A new hyperbranched poly(arylene-ether-ketone-imide). T2 - Synthesis, chain-end functionalization, and blending with a bis ... A new hyperbranched poly(arylene-ether-ketone-imide): Synthesis, chain-end functionalization, and blending with a bis(maleimide ...
The development of industrial scale ionic liquid based flow sheets is the anticipated outgrowth of fundamental ionic liquid research. The Nuclear Materials Technology (NMT) and Engineering Sciences and Applications (ESA) Divisions at Los Alamos National Laboratory are continuing the development of advanced uranium Decontamination and Conversion (D&C) systems based on the electrolytic stripping of plutonium contaminated uranium surfaces. Development of the aqueous D&C flow sheet has presented several challenges. Chief among these is the need to mitigate the safety concerns associated with the generation of hydrogen during electrolysis. We have found that the effectiveness of the stripping process is in some cases limited by film formation on the uranium anode. The aqueous flow sheet is further complicated by the requirement for pH control throughout the run, and by the ill-defined plutonium baring hydrolysis residues. Our presentation will focus on the preliminary development work toward an ionic ...
  • Thereby, over the past two decades, great efforts have been made hunting for such compounds and lithium imide salts have been found to be of great interest despite some limitations. (hal.science)
  • Local Disorder in Lithium Imide from Density Functional Simulation and NMR Spectroscopy. (mpg.de)
  • The batteries use a lithium-imide electrode, which helps prevent burnout, even at temps of up to 140 degrees. (popsci.com)
  • In terms of commercial applications, imides are best known as components of high-strength polymers, called polyimides. (wikipedia.org)
  • Many high strength or electrically conductive polymers contain imide subunits, i.e., the polyimides. (wikipedia.org)
  • The present work reports solution studies of simple analogues to address the formation and stability of two binding sites present in these polymers, open-chain amidoximes and cyclic imide dioximes, including: (1) conditions that maximize the formation of the cyclic form, (2) the existence of a base-induced conversion from open-chain to cyclic form, and (3) degradation under acid and base conditions. (figshare.com)
  • Symmtek Polymers™ delivers the new standard in abradble molded polyamide-imide resins for innovation, problem solving, and profitable growth. (symmtek.com)
  • Polyamide-imides are thermoplastic amorphous polymers that have exceptional mechanical strength, and thermal and chemical resistance. (verifiedmarketresearch.com)
  • Our abradble molded polyamide-imide resins product portfolio is designed in a concise fashion to provide dimensional stability, high-end performance, and unparalleled quality. (symmtek.com)
  • In addition to providing top quality abradble molded polyamide-imide resins, we are able to mold your thermoplastics or thermosets using a variety of conversion methods. (symmtek.com)
  • The combination of 100+ years of business development experience and cutting-edge polymer technology enables us to offer abradble molded polyamide-imide resins in your industry. (symmtek.com)
  • Our proprietary abradble molded polyamide-imide resins products, technology, and market expertise are uniquely qualified to fill these gaps. (symmtek.com)
  • The polyamide-imide resins are derived from isocyanates and TMA (trimetallic acid-anhydride) in N-methyl-2-pyrrolidone (NMP). (verifiedmarketresearch.com)
  • Poly(epoxy imide)s were prepared by a reaction between a hydroxyl-group-containing soluble copolyimide and commercial epoxy resins at 220°C for 2 h. (elsevierpure.com)
  • A team of researchers from King's College London, Humboldt-Universität zu Berlin, Carl von Ossietzky Universität Oldenburg, and Helmholtz-Zentrum Berlin (HZB), headed by Michael J. Bojdys, who is Reader in Chemistry at KCL, has investigated the synthesis, structure, optical properties of poly(triazine imide), a member of the family of graphitic carbon nitrides. (kcl.ac.uk)
  • The unique properties of poly(triazine imide) enable the research to address the issues that plague conventional organic semiconductors. (kcl.ac.uk)
  • Poly(triazine imide) is a very stable under heat and air. (kcl.ac.uk)
  • Furthermore, the graphitic morphology of poly(triazine imide) allows exfoliation of the material into thin, solution-processable layers, while at the same time reducing migration and drift of chemically bonded dopants. (kcl.ac.uk)
  • This will greatly improve our understanding of this material, as well as related materials, and help us improving OLED performance and think about future, high-value applications of poly(triazine imide)", says David Burmeister, PhD student at bojdysLAB. (kcl.ac.uk)
  • Optimized synthesis of solution-processable crystalline poly(triazine imide) with minimized defects for OLED application" Burmeister, D. (kcl.ac.uk)
  • Guided by the general principles of photocatalysis, we designed in the current study hybrid nanocomposites composed of n-type semiconducting potassium poly(heptazine imide) (K-PHI), and p-type conducting poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) as the redox active substrate. (mpg.de)
  • Chemically, Symmtamide is a Poly (Amide-Imide). (symmtek.com)
  • Poly(epoxy imide) thin films exhibited higher thermal stability and lower dielectric constants than a commercial flip-chip package material (U300). (elsevierpure.com)
  • The thermal stabilities of the poly(epoxy imide)s were 1.4-2.0 times higher than that of U300. (elsevierpure.com)
  • The dielectric constants of the poly(epoxy imide)s were 1.1-1.3 times lower than that of U300, and this is highly desirable for the microelectronic packaging industry. (elsevierpure.com)
  • The residual stresses, slopes in the cooling curves, and glass-transition temperatures of the poly(epoxy imide)s were measured with a thin-film stress analyzer. (elsevierpure.com)
  • Halogen-free poly(ether imide)s (PEIs) are important lightweight engineering materials. (elsevierpure.com)
  • We have incorporated polymer additives such as poly(ethylene glycol) dimethyl ether (PEGDME) and tetra(ethylene glycol) dimethyl ether (TEGDME) into N -methyl- N -butylpyrrolidinium bis(trifluoromethane sulfonyl)imide (PYR 14 TFSI)-LiTFSI mixtures. (lbl.gov)
  • In the present study, a series of multi-target N-substituted cyclic imide derivatives which possessed potent dopamine D2, serotonin 5-HT1A and 5-HT2A receptors properties were synthesized and evaluated as potential antipsychotics. (sophion.com)
  • Polyamide-imides (PAI), have a beneficial set of properties due to the presence in the main chain amide and imide groups of atoms. (verifiedmarketresearch.com)
  • Polyamide-imides are also unchanged by aromatic and aliphatic hydrocarbons, chlorinated and fluorinated hydrocarbons, and most acids at moderate temperatures. (verifiedmarketresearch.com)
  • Attributable to these worthier properties, polyamide-imides are prime used in different industries such as automotive, electrical & electronics, aerospace, and oil & gas. (verifiedmarketresearch.com)
  • Treatment of imides with halogens and base gives the N-halo derivatives. (wikipedia.org)
  • To find more effective anticancer agents, a series of novel dehydroabietylamine (DA) derivatives were synthesized, focusing on C-ring nitro modifications and C-18 imide introduction. (nih.gov)
  • The C-18 imide heterocyclic compounds 1, 2, and C-ring 14-nitro substituted 14 exhibited moderate to good cytotoxic activities and significant selectivity towards malignant cell lines. (nih.gov)
  • One example is Kapton where the repeat unit consists of two imide groups derived from aromatic tetracarboxylic acids. (wikipedia.org)
  • The combination of aromatic group and imide linkages is responsible for the polymer's exceptional thermal stability. (symmtek.com)
  • The acid chloride route is the earliest method for the preparation of polyamide-imide which includes the condensation of aromatic diamines such as methylene Diani-line and trimellitic acid chloride. (verifiedmarketresearch.com)
  • A123 Systems LLC, a developer and manufacturer of advanced lithium-ion batteries and systems, has acquired Leyden Energy's intellectual property in battery materials covering lithium titanate (LTO) and non-flammable electrolyte (Li-imide) developments for an undisclosed amount. (greencarcongress.com)
  • Leyden's Li-imide electrolyte does not react with water nor generate hydrofluoric acid, making it far more resistant to heat. (greencarcongress.com)
  • Within the imide family, there is now a rapidly growing interest for lithium bis(fluorosulfonyl) imide, Li[(FSO2)2N] (LiFSI) to be used in liquid electrolyte owing to well balanced properties such as absence of release of HF under normal operation, low viscosity and high conductivity, high-rate and excellent low temperature performances. (hal.science)
  • The compounds are structurally related to acid anhydrides, although imides are more resistant to hydrolysis. (wikipedia.org)
  • Inorganic imides are also known as solid state or gaseous compounds, and the imido group (=NH) can also act as a ligand. (wikipedia.org)
  • Most imides are cyclic compounds derived from dicarboxylic acids, and their names reflect the parent acid. (wikipedia.org)
  • Organic compounds called carbodiimides have the formula RN=C=NR. They are unrelated to imides. (wikipedia.org)
  • Interest in the bioactivity of imide-containing compounds was sparked by the early discovery of the high bioactivity of the Cycloheximide as an inhibitor of protein biosynthesis in certain organisms. (wikipedia.org)
  • Thus, alkali metal salts of imides can be prepared by conventional bases such as potassium hydroxide. (wikipedia.org)
  • However, subjective evidence of transient irritation associated with perchloromethyl-mercaptan during the first plant visit and with Captan dust, chlorine (7782505), and imide dust during the follow-up visit was found. (cdc.gov)
  • In organic chemistry, an imide is a functional group consisting of two acyl groups bound to nitrogen. (wikipedia.org)
  • For imides derived from amines (as opposed to ammonia), the N-substituent is indicated by a prefix. (wikipedia.org)
  • The N-H center for imides derived from ammonia is acidic and can participate in hydrogen bonding. (wikipedia.org)
  • Most common imides are prepared by heating dicarboxylic acids or their anhydrides and ammonia or primary amines. (wikipedia.org)
  • For imides derived from ammonia, the N-H center is weakly acidic. (wikipedia.org)
  • The toughness of these materials reflects the rigidity of the imide functional group. (wikipedia.org)
  • Moreover, the polyamide-imide is detached conventional materials adds to move the growth of the market. (verifiedmarketresearch.com)
  • The ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Bmim][NTf 2 ]), combined with the diglycolamide extractant, N,N-dioctyldiglycolamic acid (DODGAA), was adsorbed on macroporous resin support to produce a solvent impregnated resin (SIR) that was investigated for separations of 225 Ac and lanthanides. (osti.gov)
  • With its carbon fiber iron shafts, IMIDE AND SUNS is changing the common accepted standard of the industry, by making the hardness of the whole set of clubs consistent. (greenteegolfshop.com)
  • Building on the proprietary Li-imide platform, Leyden Energy developed an innovative LTO/LMO battery specifically designed for start/stop applications. (greencarcongress.com)
  • The surveys on the global Polyamide-imide Resin market analyze the capabilities, entities, infrastructure, and measures to achieve success. (ozcarguide.com)
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  • A rise in disposable income, which gives way to improved standards of living, has resulted in an upswing in the demand for polyamide-Imide resin, the consequence of which is the growth of the Polyamide-Imide Resin Market. (verifiedmarketresearch.com)
  • Also, growth in urbanization, which leads to the increasing demand for polyamide-Imide resin in places like corporate houses and hypermarkets is also an important reason for the growth of the Global Polyamide-Imide Resin Market. (verifiedmarketresearch.com)
  • The Global Polyamide-Imide Resin Market report provides a holistic evaluation of the market. (verifiedmarketresearch.com)
  • The increasing demand for polyamide-imide resin owing to its admirable capabilities is the major factor driving the growth of the market. (verifiedmarketresearch.com)
  • Among the reported examples of new reactivity of the hypervalent iodine reagent DMP (Dess-Martin periodinane) are the one-step oxidation of secondary amides to imides and N -acyl vinylogous carbamates or ureas and the direct oxidation of benzylic and related primary amines to the corresponding nitriles. (organic-chemistry.org)
  • It may be observed from the molecular DNQX disodium salt Autophagy structure that PAI contains two structural units, amide bond and imide ring, so PAI has some overall performance advantages over PA and PI, like high-temperature resistance, corrosion resistance, friction and wear resistance, fantastic mechanical properties, and can be compounded with a variety of substances, and so forth. (calcium-channel.com)
  • I was reading a Japanese enameled wire spec here , and I noticed that the Japanese spec said that wire type EIW, which is a polyester imide wire, suffers from a ringing phenomenon. (allaboutcircuits.com)
  • The parent imide (NH2-) is an intermediate in nitrogen fixation by synthetic catalysts. (wikipedia.org)
  • PAI (polyamide-imide) is an extremely strong and stiff plastic material. (symmtek.com)
  • Being highly polar, imides exhibit good solubility in polar media. (wikipedia.org)
  • In the 21st century new interest arose in thalidomide's immunomodulatory effects, leading to the class of immunomodulators known as immunomodulatory imide drugs (IMiDs). (wikipedia.org)
  • This specification covers a polyamide-imide plastic filled with graphite and polytetrafluoroethylene (PTFE) in the form of molded bar, rod, and shapes. (sae.org)