Chemistry, Organic: The study of the structure, preparation, properties, and reactions of carbon compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Organic Chemistry Phenomena: The conformation, properties, reaction processes, and the properties of the reactions of carbon compounds.Aza CompoundsEvolution, Chemical: Chemical and physical transformation of the biogenic elements from their nucleosynthesis in stars to their incorporation and subsequent modification in planetary bodies and terrestrial biochemistry. It includes the mechanism of incorporation of biogenic elements into complex molecules and molecular systems, leading up to the origin of life.Organic Chemistry Processes: The reactions, changes in structure and composition, the properties of the reactions of carbon compounds, and the associated energy changes.Biochemistry: The study of the composition, chemical structures, and chemical reactions of living things.Stereoisomerism: The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)Organic Chemicals: A broad class of substances containing carbon and its derivatives. Many of these chemicals will frequently contain hydrogen with or without oxygen, nitrogen, sulfur, phosphorus, and other elements. They exist in either carbon chain or carbon ring form.Molecular Structure: The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.Catalysis: The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction.Click Chemistry: Organic chemistry methodology that mimics the modular nature of various biosynthetic processes. It uses highly reliable and selective reactions designed to "click" i.e., rapidly join small modular units together in high yield, without offensive byproducts. In combination with COMBINATORIAL CHEMISTRY TECHNIQUES, it is used for the synthesis of new compounds and combinatorial libraries.Azathioprine: An immunosuppressive agent used in combination with cyclophosphamide and hydroxychloroquine in the treatment of rheumatoid arthritis. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), this substance has been listed as a known carcinogen. (Merck Index, 11th ed)Chemistry, Clinical: The specialty of ANALYTIC CHEMISTRY applied to assays of physiologically important substances found in blood, urine, tissues, and other biological fluids for the purpose of aiding the physician in making a diagnosis or following therapy.Captan: One of the phthalimide fungicides.Copper: A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.Opsoclonus-Myoclonus Syndrome: A neurological condition that is characterized by uncontrolled rapid irregular movements of the eye (OPSOCLONUS) and the muscle (MYOCLONUS) causing unsteady, trembling gait. It is also known as dancing eyes-dancing feet syndrome and is often associated with neoplasms, viral infections, or autoimmune disorders involving the nervous system.Crown Ethers: Macrocyclic polyethers with the repeating unit of (-CH2-CH2-O)n where n is greater than 2 and some oxygens may be replaced by nitrogen, sulfur or phosphorus. These compounds are useful for coordinating CATIONS. The nomenclature uses a prefix to indicate the size of the ring and a suffix for the number of heteroatoms.Imidazoles: Compounds containing 1,3-diazole, a five membered aromatic ring containing two nitrogen atoms separated by one of the carbons. Chemically reduced ones include IMIDAZOLINES and IMIDAZOLIDINES. Distinguish from 1,2-diazole (PYRAZOLES).N-substituted Glycines: AMINO ACIDS composed of GLYCINE substituted at the nitrogen rather than the usual carbon position, resulting in the loss of HYDROGEN BONDING donors. Polymers of these compounds are called PEPTOIDS.Indigo Carmine: Indolesulfonic acid used as a dye in renal function testing for the detection of nitrates and chlorates, and in the testing of milk.BooksOrganophosphorus Compounds: Organic compounds that contain phosphorus as an integral part of the molecule. Included under this heading is broad array of synthetic compounds that are used as PESTICIDES and DRUGS.Organophosphate Poisoning: Poisoning due to exposure to ORGANOPHOSPHORUS COMPOUNDS, such as ORGANOPHOSPHATES; ORGANOTHIOPHOSPHATES; and ORGANOTHIOPHOSPHONATES.Pralidoxime Compounds: Various salts of a quaternary ammonium oxime that reconstitute inactivated acetylcholinesterase, especially at the neuromuscular junction, and may cause neuromuscular blockade. They are used as antidotes to organophosphorus poisoning as chlorides, iodides, methanesulfonates (mesylates), or other salts.Organothiophosphorus Compounds: Compounds containing carbon-phosphorus bonds in which the phosphorus component is also bonded to one or more sulfur atoms. Many of these compounds function as CHOLINERGIC AGENTS and as INSECTICIDES.Book SelectionHydrogenation: Addition of hydrogen to a compound, especially to an unsaturated fat or fatty acid. (From Stedman, 26th ed)Iridium: A metallic element with the atomic symbol Ir, atomic number 77, and atomic weight 192.22.Rhodium: Rhodium. A hard and rare metal of the platinum group, atomic number 45, atomic weight 102.905, symbol Rh. (Dorland, 28th ed)Quinolizidines: Saturated quinolizines that are two fused six-membered rings with a nitrogen atom at the ring fusion. They are biosynthesized in PLANTS by cyclization of a LYSINE coupled to CADAVERINE. Many of them are naturally occurring ALKALOIDS.IminesAlkenes: Unsaturated hydrocarbons of the type Cn-H2n, indicated by the suffix -ene. (Grant & Hackh's Chemical Dictionary, 5th ed, p408)Amination: The creation of an amine. It can be produced by the addition of an amino group to an organic compound or reduction of a nitro group.Ketosesalpha-Galactosidase: An enzyme that catalyzes the hydrolysis of terminal, non-reducing alpha-D-galactose residues in alpha-galactosides including galactose oligosaccharides, galactomannans, and galactolipids.Glycoside HydrolasesKetonesbeta-Glucosidase: An exocellulase with specificity for a variety of beta-D-glycoside substrates. It catalyzes the hydrolysis of terminal non-reducing residues in beta-D-glucosides with release of GLUCOSE.IndolizinesVacuolar Proton-Translocating ATPases: Proton-translocating ATPases that are involved in acidification of a variety of intracellular compartments.Editorial Policies: The guidelines and policy statements set forth by the editor(s) or editorial board of a publication.Phosphorylation: The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety.Kidney Tubules, Collecting: Straight tubes commencing in the radiate part of the kidney cortex where they receive the curved ends of the distal convoluted tubules. In the medulla the collecting tubules of each pyramid converge to join a central tube (duct of Bellini) which opens on the summit of the papilla.Vacuoles: Any spaces or cavities within a cell. They may function in digestion, storage, secretion, or excretion.Proton-Translocating ATPases: Multisubunit enzymes that reversibly synthesize ADENOSINE TRIPHOSPHATE. They are coupled to the transport of protons across a membrane.Kidney Medulla: The internal portion of the kidney, consisting of striated conical masses, the renal pyramids, whose bases are adjacent to the cortex and whose apices form prominent papillae projecting into the lumen of the minor calyces.Aminophenols: Phenols substituted in any position by an amino group.Macrocyclic Compounds: Cyclic compounds with a ring size of approximately 1-4 dozen atoms.EthersCyclization: Changing an open-chain hydrocarbon to a closed ring. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)Famous PersonsCatechol Oxidase: An enzyme of the oxidoreductase class that catalyzes the reaction between catechol and oxygen to yield benzoquinone and water. It is a complex of copper-containing proteins that acts also on a variety of substituted catechols. EC 1.10.3.1.Monophenol Monooxygenase: An enzyme of the oxidoreductase class that catalyzes the reaction between L-tyrosine, L-dopa, and oxygen to yield L-dopa, dopaquinone, and water. It is a copper protein that acts also on catechols, catalyzing some of the same reactions as CATECHOL OXIDASE. EC 1.14.18.1.
The prefix aza- is used in organic chemistry to form names of organic compounds where a carbon atom is replaced by a nitrogen ... although none of these compounds, as yet, are available for sale commercially. IUPAC nomenclature of organic chemistry ... While the above figure gives examples of 4-aza steroids, 6-aza steroids have also been developed by GSK, ...
The use of the alternative names imonium compounds and immonium compounds is discouraged. Aza-Cope rearrangement Beckmann ... An iminium salt or cation in organic chemistry has the general structure [R1R2C=NR3R4]+ and is as such a protonated or ... It is an intermediate in many organic reactions such as the Beckmann rearrangement, Vilsmeier-Haack reaction, Stephen reaction ... the "Gold Book") (1997). Online corrected version: (2006-) "iminium compounds". IUPAC, Compendium of Chemical Terminology, 2nd ...
The aza-Baylis-Hillman reaction or aza-BH reaction in organic chemistry is a variation of the Baylis-Hillman reaction and ... with the aid of bifunctional chiral BINOL and phosphinyl BINOL compounds, for example in the reaction of n-(4-chloro- ... Aza-BH reactions are known in asymmetric synthesis by making use of chiral ligands. In one study, for the first time, ... Because this step is also reversible the presence of acid causes a racemisation process simply by mixing chiral aza-BH adduct, ...
A fenestrane in organic chemistry is a type of chemical compound with a central quaternary carbon atom which serves as a common ... In one study, a [4.5.5.5]fenestrane was synthesized with one carbon atom replaced by nitrogen because aza- compounds and their ... doi:10.1016/S0040-4039(01)94304-7. Nickon, Alex; Silversmith, Ernest F. (2013). Organic Chemistry: The Name Game: Modern Coined ... They can be regarded as spiro compounds twice over. Because of their inherent strain and instability, fenestranes are of ...
Stöckigt J, Antonchick AP, Wu F, Waldmann H (September 2011). "The Pictet-Spengler reaction in nature and in organic chemistry ... the universal precursor for monoterpenoid indole alkloid compounds. It also catalyses the formation of 12-aza-strictosidine, an ... One such investigation found (21S)-12-aza-nacycline, a 12-aza-strictosidine derivative, to exhibit potent cytotoxicity to the ... Unlike the mechanisms behind the formation of several Pictet-Spengler compounds, a spiroindolenine intermediate containing a ...
Unlike most conventional catalysts, these compounds are stable in water, so avoid the need for organic solvents, and can be ... Lanthanide triflates are triflate salts of the lanthanide family with many uses in organic chemistry as Lewis acid catalysts. ... or the aza Diels-Alder reaction catalytic synthesis. Again, water can be used as a solvent, and high yields can be achieved ... As for carbon compounds, catalysed Michael additions and aldol reactions can be used. For aromatic nitro compounds, synthesis ...
... is a organic compound with the formula C8H6N2. It is an aromatic heterocycle with a bicyclic structure consisting ... Methods of Organic Chemistry (Houben-Weyl): Additional and Supplementary Volumes to the 4th Edition. New York: Georg Thieme ... Also known as 1,3-diazanaphthalene, quinazoline received its name from being an aza derivative of quinoline. Though the parent ... Advances in Heterocyclic Chemistry. 1: 253-309. doi:10.1016/S0065-2725(08)60527-9. ISBN 9780120206018. Büchel, K. H., ed. ...
Dictionary of Organic Compounds. CRC Press. p. 3147. ISBN 978-0-412-54090-5. Morton I, Hall JM (6 December 2012). Concise ... Finasteride, also known as 17β-(N-tert-butylcarbamoyl)-4-aza-5α-androst-1-en-3-one, is a synthetic androstane steroid and 4- ... ISBN 978-0-471-37030-7. Doherty AM (2003). Annual Reports in Medicinal Chemistry. Academic Press. pp. 353-. ISBN 978-0-12- ... As an unconjugated steroid, finasteride is a highly lipophilic compound. In 1942, James Hamilton observed that prepubertal ...
It is used in organic chemistry as a reducing agent, for example in the reduction of a ketone, as part of Overman's synthesis ... N-selectride and K-selectride are related compounds, but instead of lithium as cation they have sodium and potassium cations ... S. D. Knight, L. E. Overman and G. Pairaudeau (1993). "Synthesis applications of cationic aza-Cope rearrangements. 26. ... Clayden, Jonathan; Greeves, Nick; Warren, Stuart; Wothers, Peter (2001). Organic Chemistry (1st ed.). Oxford University Press. ...
2". The Journal of Organic Chemistry. 53: 5998-6005. doi:10.1021/jo00261a003. Cook G.R.; Barta N.S.; Stille J.R. (1992). "Lewis ... although other silver and copper compounds have been used. This added step allows for more precise control of iminium ion ... acid-promoted 3-aza-Cope rearrangement of N-alkyl-N-allyl enamines". The Journal of Organic Chemistry. 57 (2): 461-467. doi: ... Overman, L. E.; Humphreys, P. G.; Welmaker, G. S. (2011). "The Aza-Cope/Mannich Reaction". Organic Reactions. 75: 747-820. doi: ...
This reaction is of some importance to synthetic organic chemistry. The oxo-DA reaction was first reported in 1949 using a ... Aza Diels-Alder reaction A Diels-Alder Type Reaction with Formaldehyde Thomas L. Gresham, Thomas R. Steadman J. Am. Chem. Soc ... 10.1021/ja01170a101 Tetrahedron Report number 869 Asymmetric hetero-Diels-Alder reactions of carbonyl compounds Helene ... An oxo-Diels-Alder reaction (also called an oxa-Diels-Alder reaction) is an organic reaction and a variation of the Diels-Alder ...
... s are organic compounds bearing the functional group R−N=N−R′, in which R and R′ are usually aryl. They are a ... Great interest has been shown in the degradation of aza dyes to deliver a nontoxic, colorless effluent. Methods include ... in Ullmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim.doi:10.1002/14356007.a03_245. Paola Gilli; Valerio ... The lightfastness depends not only on the properties of the organic azo compound, but also on the way they have been absorbed ...
He obtained his PhD degree (Candidate of Sciences Degree as it is called in the Ukraine) in 1991 in Organic Chemistry at Taras ... The areas of scientific interests of Igor V. Komarov are medicinal chemistry and synthesis of model compounds, which can be ... study of stereochemistry and chemical properties of 1-aza-2-adamantanone and its derivatives. A trimethyl-substituted ... Igor V. Komarov started his research in the area of synthetic organic chemistry at the beginning of 1990th, working on ...
According to the IUPAC rules for the designation of linear organic polymers, the compound would actually be named poly[aza( ... Silazane Chemistry". Journal of the American Ceramic Society. 95: 1536-1543. doi:10.1111/j.1551-2916.2012.05079.x. R. Bhandavat ... Silicon-nitrogen compounds with alternating silicon- ("sila") and nitrogen atoms ("aza") are designated as silazanes. Simple ... Pre-ceramic polymers can replace these organic binders. After compounding, casting and curing, the thermoset material can be ...
... , conventionally abbreviated as DEAD and sometimes as DEADCAT, is an organic compound with the ... The Journal of Organic Chemistry. 32 (3): 727-729. doi:10.1021/jo01278a049. ISSN 0022-3263. Kelmara K. Kelly (2009) Novel ... DEAD is an aza-dienophile and an efficient dehydrogenating agent, converting alcohols to aldehydes, thiols to disulfides and ... It has also been used to generate aza-Baylis-Hillman adducts with acrylates. DEAD can be used for synthesis of heterocyclic ...
... is a heterocyclic organic compound with the molecular formula C8H9N. The parent compound has a bicyclic structure, ... "The chemistry of isoindole natural products" Beilstein journal of organic chemistry 2013, vol. 9, pp. 2048-78. doi:10.3762/bjoc ... 2-addition of a nucleophile onto a bifunctional ε-benzoiminoenoates followed by intramolecular aza-Michael reaction. Another ... The compound's structure is similar to indoline except that the nitrogen atom is in the 2 position instead of the 1 position of ...
"Column: Totally Synthetic". Chemistry World. Retrieved 2017-04-21. "1-Aza-5-stanna-5,5-dimethylbicyclo[3.3.01,5] octan und 1- ... "Stille Coupling of an Aziridinyl Stannatrane". The Journal of Organic Chemistry. 78 (10): 5061-5066. doi:10.1021/jo4005052. Li ... largest known value for any existing tetraorganotin compounds); (3) the observation of unusual hybridization at the apical tin- ... A stannatrane (IUPAC: 1-aza-5-stannabicyclo[3.3.3]undecane) is a tin-based atrane belonging to the larger class of ...
... is a heterocyclic aromatic organic compound. It is a structural isomer of quinoline. Isoquinoline and quinoline ... Simple aromatic rings Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge ... Intramolecular aza Wittig reactions also afford isoquinolines. Isoquinolines find many applications, including: anesthetics; ... Bisbenzylisoquinolinium compounds are compounds similar in structure to tubocurarine. They have two isoquinolinium structures, ...
They are used as a ligand in chemistry for instance with chemicals used in MRI contrast agents. Cyclen compounds can be ... Cyclen or 1,4,7,10-tetraazacyclododecane is a macrocycle and the aza analogue of the crown ether 12-crown-4. Derivatives of ... Atkins, T. J.; Richman, J. E.; Oettle, W. F. (1988). "1,4,7,10,13,16-Hexaazacyclooctadecane". Organic Syntheses. ; Collective ... Like crown ethers, cyclen compounds are capable of selectively binding cations. ...
An example of a Staudinger reduction is the organic synthesis of this pinwheel compound: The reaction mechanism centers around ... Beilstein Journal of Organic Chemistry, 2 (1): 23, doi:10.1186/1860-5397-2-23, PMC 1779791 , PMID 17137496. the nucleoside is ... In aqueous media, the aza-ylide intermediate rearranges, to produce an amide linkage and the phosphine oxide, and is so named ... Staudinger Reaction at organic-chemistry.org accessed 060906. Julia-Staudinger Reaction. ...
Advanced organic chemistry: reaction mechanisms, Reinhard Brückner Di, M.; Rein, K. S. (2004). "Aza analogs of kainoids by ... 3-dipole diazo compound (notably diazomethane) and a dipolarophile. When the dipolarphile is an alkene, the reaction product is ... The Diazoalkane 1,3-dipolar cycloaddition is a 1,3-dipolar cycloaddition (an organic reaction) between a 1, ... as the reactant the regioselectivity is reversed and the reaction is extended even further by simple air organic oxidation of ...
The heteroatom is assumed to have its standard bonding number for organic chemistry while the name is being constructed. The ... 1993). "Recommendation 2.3.3". A Guide to IUPAC Nomenclature of Organic Compounds. IUPAC/Blackwell Science. pp. 40-44. ISBN 0- ... For example, "oxa" (for oxygen) always comes before "aza" (for nitrogen) in a name. The priority order is the same as that used ... The parent compound for unsaturated ring systems is the one containing the maximal number of non-cumulated double bonds (known ...
... is an organic chemical compound with the condensed structural formula C6H5CH2NH2 (sometimes abbreviated as PhCH2NH2 ... The aza-Diels-Alder reaction converts imines and dienes to tetrahydropyridines in which the nitrogen atom can be part of the ... Heuer, L. (2006). "Benzylamines". Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH. doi:10.1002/14356007.a04_009.pub2 ... An example is the reaction of cyclopentadiene with benzylamine to form an aza-norbornene. Benzylamine is used in the industrial ...
At the time he was director of research in organic chemistry at the Radium Institute in Paris. Hội accepted the invitation of ... He worked in the laboratory of Pauline Ramart-Lucas, investigating the spectrophotometry of organic compounds. Bửu Hội's career ... Aside from his studies with aza-replaced hydrocarbons, benz- and dibenzacridines and -carbazoles, he also synthesised and ... After a short stint under Perrin in the Institute of Chemical Physics, he began his doctoral research in organic chemistry. ...
The Henry reaction is a useful technique in the area of organic chemistry due to the synthetic utility of its corresponding ... The aza-Henry reaction is also used to produce nitroamines and can be a reliable synthetic route for the synthesis of vicinal ... This includes the conversion of unreactive alkyl nitro compounds to their corresponding dianions which will react faster with ... is a classic carbon-carbon bond formation reaction in organic chemistry. Discovered in 1895 by the Belgian chemist Louis Henry ...
Royal Society of Chemistry. ISBN 978-1-84755-161-0. .. *^ D. R. MacFarlane; J. Golding; S. Forsyth; M. Forsyth & G. B. Deacon ( ... Organic synthesis[edit]. A liquid tetraalkylphosphonium iodide is a solvent for tributyltin iodide, which functions as a ... Examples include compounds based on the 1-Ethyl-3-methylimidazolium (EMIM) cation and include: EMIM:Cl, EMIM dicyanamide, (C. 2 ... Aza-Baylis-Hillman reaction for the use of a chiral ionic liquid in asymmetric synthesis. ...
Topics in Current Chemistry - Small Ring Compounds in Organic Synthesis V, pp. 1-97 Springer, ISBN:978-3-662-14836-5. Accesso ... Synthesis of N-bridgehead aza-heterocycles and aza-analogues of natural compounds. Asymmetric synthesis of compounds of ... of Organic Chemistry.. 1994 Full Professor of Organic Chemistry, Univ. of Florence, Faculty of Science, Dept. of Organic ... European Journal of Organic Chemistry, Journal of the American Chemical Society, Journal of Organic Chemistry, Organic Letters ...
The prefix aza- is used in organic chemistry to form names of organic compounds where a carbon atom is replaced by a nitrogen ... although none of these compounds, as yet, are available for sale commercially. IUPAC nomenclature of organic chemistry ... While the above figure gives examples of 4-aza steroids, 6-aza steroids have also been developed by GSK, ...
For example, we recently described the superacid‐catalyzed aza‐Nazarov reaction, eq 1 (Organic Letters 2007, 9, 3085). This ... polycyclic aromatic compounds, such as the benzo[f]isoquinoline, eq 2 (Organic Letters 2006, 8, 1233 and J. Org. Chem. 2008, 73 ... Synthetic and Mechanistic Organic Chemistry. Our research group works within the field of organic chemistry. We have interests ... We have also examined the factors that tend to favor the migration of charge across organic structures. This chemistry is ...
cellulose, copper, aza-Michael, amines, α,β-unsaturated compounds, β-amino compounds ... Inorganic and Physical Chemistry Division, Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India, Email: ... β-unsaturated compounds to produce the corresponding β-amino compounds and N-substituted imidazoles in excellent yields. The ... Cellulose-Supported Copper(0) Catalyst for Aza-Michael Addition. K. Rajender Reddy*, Nadakudity S. Kumar. * ...
Piperidine compounds and a process of preparing them US2328358A (en) 1943-08-31. Organic compound and process for preparing the ... 14, 1944 OTHER REFERENCES Fruton et al.: J. Organic Chemistry, vol, 11 (1946) pp. 571 to 580. ... diethyl 3 aza pentaneand N ,N ,N,N,N,N,3- heptamethyl 3 aza pentane 1,5 diammonium compounds, particularly the N,N,N,N,3- ... Quaternary ammonium compounds US2101524A (en) * 1931-06-24. 1937-12-07. Gen Aniline Works Inc. Quaternary ammonium compounds ...
Much of this work requires a sound understanding of the organic chemistry of phosphorus and this volume is designed to instruct ... Topics covered include phosphines, applications of phosphorus (III) and (V) compounds as reagents in synthesis, the chemistry ... Dr I ONeil and Dr J.M. Southern: Preparation and reactions of Iminophosphoranes and their synthetic applications in the aza- ... Dr Patrick J Murphy is currently a senior lecturer in Organic Chemistry at the University of Wales, Bangor. His research ...
The use of the alternative names imonium compounds and immonium compounds is discouraged. Aza-Cope rearrangement Beckmann ... An iminium salt or cation in organic chemistry has the general structure [R1R2C=NR3R4]+ and is as such a protonated or ... It is an intermediate in many organic reactions such as the Beckmann rearrangement, Vilsmeier-Haack reaction, Stephen reaction ... the "Gold Book") (1997). Online corrected version: (2006-) "iminium compounds". IUPAC, Compendium of Chemical Terminology, 2nd ...
Organic Chemistry.. 2005 (English)Doctoral thesis, comprehensive summary (Other academic) Abstract [en]. The synthesis of 2-aza ... The use of these compounds in preparation of Ir catalysts for asymmetric hydrogenations is described. The evaluation and ... Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Chemistry, Organic Chemistry.. ... Organic Chemistry Identifiers. urn:nbn:se:uu:diva-5783 (URN)91-554-6243-X (ISBN) Public defence 2005-05-28, Room B42, BMC, ...
A Molecular Electron Density Theory Study of the Enhanced Reactivity of Aza Aromatic Compounds Participating in Diels-Alder ... Source: RSC - Organic and Biomolecular Chemistry - December 9, 2019. Category: Molecular Biology Authors: Xiahe Chen Source ... Source: RSC - Organic and Biomolecular Chemistry - December 9, 2019. Category: Molecular Biology Authors: Luis R. Domingo ... Patricia Perez The enhanced reactivity of a series of four aza aromatic compounds (AACs) participating in the Diels-Alder (DA) ...
A Molecular Electron Density Theory Study of the Enhanced Reactivity of Aza Aromatic Compounds Participating in Diels-Alder ... Source: RSC - Organic and Biomolecular Chemistry - December 9, 2019. Category: Molecular Biology Authors: Xiahe Chen Source ... Source: RSC - Organic and Biomolecular Chemistry - December 9, 2019. Category: Molecular Biology Authors: Luis R. Domingo ... Patricia Perez The enhanced reactivity of a series of four aza aromatic compounds (AACs) participating in the Diels-Alder (DA) ...
Organic Chemistry Portal. Chemicals ,, Oxidizing Agents. Copper Compounds. Recent Literature. A simple and mild TEMPO-CuCl ... followed by intramolecular aza-Wacker cyclization.. J. Zheng, L. Huang, C. Huang, W. Wu, H. Jiang, J. Org. Chem., 2015, 80, ... The product can be isolated by a simple extraction with organic solvent, and the ionic liquid can be recycled or reused.. I. A ... Furthermore, the hydroxylated products can readily be converted into vicinal tricarbonyl compounds, which are useful synthetic ...
Published in: European Journal of Organic Chemistry (ISSN: 1434-193X), num. 5, p. 1185-1189 *Publication date: 1999 ... Enzyme inhibition tests show that neither of the three compounds 4, 5, and 6 inhibit beta-glycosidases, while moderate to good ... Keywords: carbohydrates ; aza sugars ; double reductive amination ; enzyme ; inhibitors ; glycosidase inhibitors ; Aza-c- ... A short and flexible route to aza-beta-(1 -, 6)-C-disaccharides: Selective alpha-glycosidase inhibitors. Leeuwenburgh, M. A.; ...
Shi, Y. and Shi, M. (2007) Aza-Baylis-Hillman Reactions and Their Synthetic Applications. European Journal of Organic Chemistry ... or Aza-Morita-Baylis-Hillman reaction substrates [7] . These molecules include drugs, bioactive compounds, process impurities ... International Journal of Organic Chemistry, 9, 10-22. doi: 10.4236/ijoc.2019.91002. ... The organic phase was dried over Na2SO4 anhydrous. Concentration in a rotatory evaporator gave the crude product, which was ...
The synthesis of oxa- and aza-heterocyclic compounds.. J. Cossy Recent Res. Devel. Synth. Organic Chem. 1999, 2, 23-33. 6-The ... A. Archambeau, F. Miège, J. Cossy, C. Meyer in « The Chemistry of Organogold Compounds » Eds : Z. Rappoport, J. F. Liebman, I. ... The chemistry of double bonds.. J. Cossy, P. A. Carrupt, P. Vogel Ed, S.Patai, John Wiley and Sons Ltd, 1989, 1369.. 2- ... J. Cossy, F. Lutz, V. Alauze, C. Meyer, J. R. Desmurs The Roots of Organic Development, Vol. 9, 2000, 25.. 7-Troglitazone. A ...
Given the central character of sulfur in organic chemistry, these compounds can then be converted to a variety of unrelated ... Next, an aza-Morita-Baylis-Hillman reaction was investigated where L-proline is the catalyst. The reaction proceeds with ... Palladium-catalyzed reactions of unsaturated hydrocarbons are important processes in organic chemistry especially for the ... All target compounds were tested for anti-HIV activity. Of these, only 2,3-dideoxy-2-Chydroxymethylcytidine and l-(3,5- ...
Department of Organic Chemistry. Adolfsson, Hans Stockholm University, Faculty of Science, Department of Organic Chemistry. ... In this work two acetylene alcohols, compound 1 and compound 2, which were isolated and identified from the sponge ... Next, an aza-Morita-Baylis-Hillman reaction was investigated where L-proline is the catalyst. The reaction proceeds with ... Department of Organic Chemistry. Adolfsson, Hans Stockholm University, Faculty of Science, Department of Organic Chemistry. ...
... as organic base catalysts in good to high yields. On the other hand, N-sulfinylketimines also furnished the aza-Henry product ... ketimine Chemical Compounds * Guanidine Chemical Compounds * 1,1,3,3-tetramethylguanidine Chemical Compounds ... as organic base catalysts in good to high yields. On the other hand, N-sulfinylketimines also furnished the aza-Henry product ... as organic base catalysts in good to high yields. On the other hand, N-sulfinylketimines also furnished the aza-Henry product ...
... as well as the application of these compounds in functional dyes and pigments. Research and development activities in the ... while the chapter on aza[18]annulenes is expanded to include improved and sophisticated synthetic approaches to the ... destined to become a classical reference work for researchers in this exciting and important subdiscipline of chemistry. ... Color chemistry: syntheses, properties, and applications of organic dyes and .... Heinrich Zollinger. Snippet view - 2003. ...
... several methods for preparing such compounds of the active ingredient, and novel intermediates and method for preparing a class ... a metallocene compound of formula aza (Ⅴ) second step required for the known compounds in organic chemistry. ... 102] 化学式(Ⅸ)的化合物是已知化合物,或者可以通过原理上已知的方法制备。 [102] The compound of formula (IX) are known compounds or prepared by known methods can ... 在第二步中使生成的化学式(Ⅳ)化合物-芳基环丙基
Current developments in the synthesis and biological activity of aza-C-nucleosides: immucillins and related compounds, Merino, ... on Synthetic Organic Chemistry, 5th, 6th, Sept. 1-30, 2001 and 2002 [and] 7th, 8th, Nov. 1-30, 2003 and 2004 2004, 1268-1273. ... Conference on Synthetic Organic Chemistry; [and] Proceedings of ECSOC-2: The Second International Electronic Conference on ... Electronic Conference on Synthetic Organic Chemistry; [and] Proceedings of ECSOC-2: T, 1999; pp 328-334. ...
Disclosed are compounds, stereoisomers, tautomers, pharmaceutically acceptable salts, or prodrugs thereof of having Formula (I ... Rodds Chemistry of Carbon Compounds, Volumes 1-5 and Supplementals (Elsevier Science Publishers, 1989), Organic Reactions, ... The carbodiimides may be used in conjunction with additives such as benzotriazoles 7-aza-1-hydroxybenzotriazole (HOAt), 1- ... 7. A compound of claim 1 wherein V is C and W is N. 8. A compound of claim 1 wherein Z is C(O). 9. A compound of claim 1 ...
K. V. Vatsuro and G. L. Mishchenko, Named Reactions in Organic Chemistry [in Russian], Khimiya, Moscow (1976), p. 314.Google ... Chemistry of Heterocyclic Compounds. March 2011. , Volume 46, Issue 12, pp 1549-1551 , Cite as ... ammonium acetate dibenzyl ketone 2-oxa-6-aza-3,4-benzo[3.3.11,5]nonane salicylaldehyde ... Synthesis of 2-oxa-6-aza-3,4-benzobicyclo-[3.3.11,5]nonane from dibenzyl ketone, salicylaldehyde, and ammonia. ...
Q Science , QD Chemistry , QD450 Physical and theoretical chemistry. Faculties/Schools:. UK Campuses , Faculty of Science , ... The proposed catalytic olefination investigated the reaction of sulfur ylides or sulfines with carbonyl compounds to produce ... Investigations into metal-oxo reagents in organic syntheses and towards the syntheses of (-)-dysibetaine using aza-[2,3]-Wittig ... The aza-[2,3]-Wittig precursor 109 was prepared and subjected to the standard aza-[2,3]-Wittig rearrangement-cyclisation ...
Journal Of Organic Chemistry, 2013,78(22), 11335-11341 The reaction of 3-azidopropanoic acid with the carbodiimide-based ... Nucleophilic Substitution of Azide Acting as a Pseudo Leaving Group: One-Step Synthesis of Various Aza Heterocycles. ... The method is functional-group tolerant, proceeds smoothly (30 to 50 °C) and provides rapid access to the target compounds in ... Journal Of Organic Chemistry, 2014,79(3), 908-918 Starting from commercially available 2-chloro-3-hydroxypyridine, a new route ...
These substrates have shown selectivity for host-guest binding of neutral and charged aromatic compounds in organic solution. ... Our favorite targets are aza- and oxacalixarenes and related cyclophanes, generated by condensation of diphenols, ... Synthetic Organic Chemistry Physical Organic Chemistry Supramolecular Chemistry Materials Chemistry. The Katz Group explores ... We strive for chemical and operational simplicity; the representative examples shown below are all compounds produced in either ...
  • University of Montreal, Department of Chemistry. (diva-portal.org)
  • Member of the board, Department of Chemistry, University of Oslo (2005-12). (uio.no)
  • We further envisioned that the other allcarbon quarternary center at C12 and the aza-cyclononane [*] X.-M. Zhang, Prof. Dr. Y.-Q. Tu, Prof. Dr. F.-M. Zhang, H. Shao, ring could be constructed through a challenging semipinacol X. Meng ring expansion of an eight-membered nitrogen-containing Department of Chemistry ring from hydroxy epoxide 5. (docme.ru)
  • A Pd(II)-catalyzed oxidative approach to construct polysubstituted pyrroles from N -homoallylicamines and arylboronic acids proceeds through cascade formation of C-C and C-N bonds via oxidative arylation of unactive alkenes, followed by intramolecular aza-Wacker cyclization. (organic-chemistry.org)
  • The dihydroindolizines and benzofused ones are easily generated via rhodium-catalyzed hydroformylation of N -allylpyrroles and indoles: the butanal intermediate undergoes an intramolecular cyclodehydration giving the final polycyclic compound. (springer.com)
  • Its chemistry plays a key role in the development of such important areas as pharmaceuticals, agrochemicals, modern materials and molecular biology. (indigo.ca)
  • Acetylenes are increasingly versatile functional groups for a range of complexity-building organic transformations and for the construction of desirable molecular architectures. (colby.edu)
  • CV measurements and theoretical calculations demonstrate that the frontier molecular orbital levels of these compounds are suitable as donor materials in solar cells when combined with C 60 as the acceptor. (rsc.org)
  • We obtain a PCE of 3.0% and a V oc of 0.61 V, which are rather high values for NIR absorbing vacuum processable small molecular donor compounds, with an absorption onset around 950 nm. (rsc.org)
  • 8 Compounds containing two linked cyclic peptides such as compound 1 , dubbed molecular oysters, are capable of encapsulating and complexing sulfate with high stability constants ( e.g. 3.5 × 10 5 M −1 in 1 ∶ 1 water /methanol solution with compound 1 ). (rsc.org)
  • Organometallic compounds have also influenced material synthesis: Areas that have profited from the ready availability of volatile, stoichiometrically precisely defined molecular compounds of the metallic elements including synthesis of materials (metals, alloys, semi-conductors) by vapor deposition, of new molecular magnetic and electro optical materials (non-linear optics), of metal-organic frameworks as gas adsorbents, of metal-containing polymers, and of metallomeogens. (mdpi.com)
  • Chemistry of molecular recognition is the chemistry of intermolecular bond. (nii.ac.jp)
  • We developed an efficient method for structural analysis of an extremely flexible macrocyclic compound, which utilizes both the molecular mechanics calculation and effect of magnetic anisotropy of aromatic ring current. (nii.ac.jp)
  • At the frontier of this subdiscipline one must have a sophisticated knowledge of quantum mechanics, physical, and organic chemistry, chemical physics, mathematics, symmetry, and molecular structure, along with advanced computational skills. (quantum-chemistry-history.com)
  • The compounds were expected to have antimycobacterial activity due to the ability of boron to form charged, reversible tetrahedral complexes and compete for enzyme active-sites. (openrepository.com)
  • Materials: From organic salts to host-guest complexes. (cardiff.ac.uk)
  • Synthesis of organic ligands and inorganic complexes as well as physical (potentiometric and spectrophotometric titrations, various spectroscopies, electrochemistry etc.) and biological studies (in cells, at UBC Bioservices and/or in collaboration) are undertaken in the research programme. (ubc.ca)
  • We synthetized bis(azacrown ether)s containing an acridinone signalling unit, and we showed that the one having two aza-18-crown-6 ether receptor units is able to form complexes with both 1:1 and 1:2 ligand to metal ion ratios. (mtak.hu)
  • The one electron reduction leads to radical cation chemistry, and in the case of the oxazole derivative, a dimerization pathway. (niu.edu)
  • On the other hand, dihydropyrimidine (DHPM) derivative, (aza analogue) namely, monastrol inhibits the protein Eg5, which is responsible for the separation of daughter chromosomes during cell division and controls the growth of the tumor cells. (springer.com)
  • The present invention provides certain tetrahydrouridine derivative compounds, pharmaceutical compositions and kits comprising such compounds, and methods of making and using such compounds. (justia.com)
  • With unusual charge migration and benzene elimination steps, we were able to prepare a series of functionalized aza‐polycyclic aromatic compounds, such as the benzo[f]isoquinoline, eq 2 (Organic Letters 2006, 8, 1233 and J. Org. (niu.edu)
  • These substrates have shown selectivity for host-guest binding of neutral and charged aromatic compounds in organic solution. (colby.edu)
  • Polycyclic aromatic hydrocarbons (PAHs) as well as their aza and sulfur analogs are widely prevalent in the environment and many members of this family are metabolized to ultimate carcinogens . (cuny.edu)
  • 9. The method of claim 7 , wherein the compound is selected from the group consisting of tamoxifen, cenchroman, clomiphene, droloxifene, raloxifene and pharmaceutically acceptable salts thereof. (google.es)
  • Tropylium Salts and Other Non-Benzenoid Compounds. (elsevier.com)
  • Racemic compounds were conveniently prepared by thermal Overman rearrangements of primary allyl alcohols with trisubstituted double bonds, but rearrangement of these substrates by the only commercially available compound known to catalyze enantioselective Overman rearrangements, the cobalt oxazoline palladacycle (R)-COP-Cl, failed. (uio.no)
  • USCIS approved a petition for a chemist who works in the field of inorganic chemistry research involving DNAzyme and aptamer selection and its application in the biosensor field. (nationalinterestwaivers.com)
  • This invention is based on the application of a hybrid organic/inorganic treatment onto an exposed surface - either as a stand-alone treatment or as a sealant. (innoget.com)
  • Inorganic Chemistry 58(19), pp. 13268-13275. (cardiff.ac.uk)
  • Porphyrin complex compounds consisting of at least one porphyrin ligand, optionally at least one ion of an element of atomic numbers 5, 13, 21-32, 37-39, 42-44, 49, 50 or 57-83 as well as optionally cations of inorganic and/or organic bases, amino acids or amino acid amides, are valuable diagnostic media and therapeutic agents. (segmented.us)
  • and containing at least one ion of an element of atomic numbers 21-29, 42, 44 or 57-83 which is chelated by a complexing agent of group K, the porphyrin skeleton, or both, with the proviso that the porphyrin skeleton does not chelate a metal ion other than manganese, and optionally comprising cations of inorganic and/or organic bases, amino acids or amino acid amides. (segmented.us)
  • We prepared optically active monoaza-18-crown-6 ethers, attached different fluorofor signalling units (BODIPY, acridinon, N-methylacridinon) to them, and using photophysical methods we thoroughly studied their complexation with the enantiomers of different chiral compounds, and several metal ions, respectively. (mtak.hu)
  • In the title compound (Fig. 1), the Mn III -Mn IV centrosymmetric, dinuclear cation is bridged by two oxo ligands. (iucr.org)
  • Nonaromatic unsaturated compounds are highly reactive-that is, they readily undergo additions of atoms or groups of atoms to the carbon atoms of their double bonds, giving each carbon four substituents. (britannica.com)
  • We synthesize three benzannulated aza-BODIPY dyes with heterocyclic substituents, namely N -methyl pyrrole, N -methyl indole and 2-trimethylsilyl thiophene. (rsc.org)
  • Actinomycetes are prolific producers of antibiotics and other bioactive natural products, including many compounds used in medicine and agriculture, such as erythromycin, rifampicin, amphotericin, doxorubicin, avermectin and spinosyn. (rsc.org)
  • The title compound, [Mn 2 O 2 (C 10 H 24 N 4 ) 2 ](C 24 H 20 B) 2 Cl·2CH 3 CN, is a mixed-valent Mn III /Mn IV oxide-bridged mangan-ese dimer with one chloride and two tetra-phenyl-borate counter-anions. (iucr.org)
  • 2020. Crystal structure of (E)-3-(3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)-1-phenylprop-2-en-1-one, C27H21N5O . (cardiff.ac.uk)
  • Therefore, we hypothesized the kinetic resolution of 2-substituted 1,2-dihydroquinolines via Cu-catalyzed borylation ( Scheme 1 ), which can simultaneously afford both chiral organoboron compounds bearing two vicinal stereogenic centers and the enantiomerically enriched recovered 2-substituted 1,2-dihydroquinolines, 23 which can be transformed to the corresponding tetrahydroquinolines by simple methods. (pubmedcentralcanada.ca)
  • The scaled up synthesis of these compounds in a homemade PTFE tubing (ID 1.5 mm) reactor system was thereafter investigated and comparable conversions were observed. (oatd.org)
  • My interest in the synthesis of these compounds stems from studies dealing with the hydroformylation ( oxo ) of olefins. (springer.com)
  • The invention provides compounds that are fractalkine receptor agonists and useful in treating, preventing or minimizing metastasis in a subject diagnosed with cancer. (organic-reaction.com)
  • Moreover, the deactivation of enzymes could be observed in these organic solvents, particularly at high temperatures. (mdpi.com)