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.AcetophenonesPropiophenonesomega-Chloroacetophenone: A potent eye, throat, and skin irritant. One of its uses is as a riot control agent.Amidine-Lyases: These enzymes catalyze the elimination of ammonia from amidines with the formation of a double bond. EC 4.3.2.Amides: Organic compounds containing the -CO-NH2 radical. Amides are derived from acids by replacement of -OH by -NH2 or from ammonia by the replacement of H by an acyl group. (From Grant & Hackh's Chemical Dictionary, 5th ed)Palladium: A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.Amines: A group of compounds derived from ammonia by substituting organic radicals for the hydrogens. (From Grant & Hackh's Chemical Dictionary, 5th ed)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.PhotochemistryProflavine: Topical antiseptic used mainly in wound dressings.Quantum Theory: The theory that the radiation and absorption of energy take place in definite quantities called quanta (E) which vary in size and are defined by the equation E=hv in which h is Planck's constant and v is the frequency of the radiation.Triplets: Three individuals derived from three FETUSES that were fertilized at or about the same time, developed in the UTERUS simultaneously, and born to the same mother.Rhodocyclaceae: A family of gram-negative bacteria in the order Rhodocyclales, class BETAPROTEOBACTERIA. It includes many genera previously assigned to the family PSEUDOMONADACEAE.Photochemical Processes: Chemical reactions effected by light.Carboxyl and Carbamoyl Transferases: A group of enzymes that catalyze the transfer of carboxyl- or carbamoyl- groups. EC 2.1.3.Chlorophyll: Porphyrin derivatives containing magnesium that act to convert light energy in photosynthetic organisms.Hydrogenation: 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.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)Ruthenium: A hard, brittle, grayish-white rare earth metal with an atomic symbol Ru, atomic number 44, and atomic weight 101.07. It is used as a catalyst and hardener for PLATINUM and PALLADIUM.KetonesAlcohols: Alkyl compounds containing a hydroxyl group. They are classified according to relation of the carbon atom: primary alcohols, R-CH2OH; secondary alcohols, R2-CHOH; tertiary alcohols, R3-COH. (From Grant & Hackh's Chemical Dictionary, 5th ed)Alkadienes: Acyclic branched or unbranched hydrocarbons having two carbon-carbon double bonds.Allyl CompoundsIndiaBenzene DerivativesErythroxylaceae: A plant family of the order Linales, subclass Rosidae, class Magnoliopsida best known for the coca plant.Mannich Bases: Ketonic amines prepared from the condensation of a ketone with formaldehyde and ammonia or a primary or secondary amine. A Mannich base can act as the equivalent of an alpha,beta unsaturated ketone in synthesis or can be reduced to form physiologically active amino alcohols.Paraoxon: An organophosphate cholinesterase inhibitor that is used as a pesticide.Fraud: Exploitation through misrepresentation of the facts or concealment of the purposes of the exploiter.Counterfeit Drugs: Drugs manufactured and sold with the intent to misrepresent its origin, authenticity, chemical composition, and or efficacy. Counterfeit drugs may contain inappropriate quantities of ingredients not listed on the label or package. In order to further deceive the consumer, the packaging, container, or labeling, may be inaccurate, incorrect, or fake.Refractometry: Measurement of the index of refraction (the ratio of the velocity of light or other radiation in the first of two media to its velocity in the second as it passes from one into the other).Viscosity: The resistance that a gaseous or liquid system offers to flow when it is subjected to shear stress. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Chemistry, Pharmaceutical: Chemistry dealing with the composition and preparation of agents having PHARMACOLOGIC ACTIONS or diagnostic use.Blood Viscosity: The internal resistance of the BLOOD to shear forces. The in vitro measure of whole blood viscosity is of limited clinical utility because it bears little relationship to the actual viscosity within the circulation, but an increase in the viscosity of circulating blood can contribute to morbidity in patients suffering from disorders such as SICKLE CELL ANEMIA and POLYCYTHEMIA.Acoustics: The branch of physics that deals with sound and sound waves. In medicine it is often applied in procedures in speech and hearing studies. With regard to the environment, it refers to the characteristics of a room, auditorium, theatre, building, etc. that determines the audibility or fidelity of sounds in it. (From Random House Unabridged Dictionary, 2d ed)Sound Spectrography: The graphic registration of the frequency and intensity of sounds, such as speech, infant crying, and animal vocalizations.
(1/833) Arachidonic acid, but not its metabolites, is essential for FcgammaR-stimulated intracellular killing of Staphylococcus aureus by human monocytes.

Since arachidonic acid (AA) production by phospholipase A2 (PLA2) is essential for the Fcgamma receptor (FcgammaR)-mediated respiratory burst and phagocytosis of opsonized erythrocytes by monocytes and macrophages, we focused in this study on the role of AA and its metabolites in the FcgammaR-stimulated intracellular killing of Staphylococcus aureus by human monocytes. The results revealed that the PLA2 inhibitors, but not inhibitors of cyclo-oxygenase and lipoxygenase, markedly suppressed the FcgammaR-mediated killing process. The production of O-2 by monocytes upon FcgammaR cross-linking was inhibited by 4-bromophenacyl bromide in a dose-dependent fashion, indicating that inhibition of PLA2 activity impairs the oxygen-dependent bactericidal mechanisms of monocytes, which could be partially restored by addition of exogenous AA and docosahexaenoic acid, but not myristic acid. These polyunsaturated fatty acids, but not myristic acid, stimulated the intracellular killing of S. aureus by monocytes, although not as effectively as FcgammaR cross-linking. Furthermore, FcgammaR cross-linking stimulated the release of AA from monocytes. Studies with selective inhibitors revealed that the FcgammaR-mediated activation of PLA2 is dependent on Ca2+ and tyrosine kinase activity. Together these results indicate a key role for PLA2/AA, but not its major metabolites, in mediating the FcgammaR-stimulated intracellular killing of S. aureus by monocytes.  (+info)

(2/833) Protein kinase Cdelta mediates neurogenic but not mitogenic activation of mitogen-activated protein kinase in neuronal cells.

In several neuronal cell systems, fibroblast-derived growth factor (FGF) and nerve growth factor (NGF) act as neurogenic agents, whereas epidermal growth factor (EGF) acts as a mitogen. The mechanisms responsible for these different cellular fates are unclear. We report here that although FGF, NGF, and EGF all activate mitogen-activated protein (MAP) kinase (extracellular signal-related kinase [ERK]) in rat hippocampal (H19-7) and pheochromocytoma (PC12) cells, the activation of ERK by the neurogenic agents FGF and NGF is dependent upon protein kinase Cdelta (PKCdelta), whereas ERK activation in response to the mitogenic EGF is independent of PKCdelta. Antisense PKCdelta oligonucleotides or the PKCdelta-specific inhibitor rottlerin inhibited FGF- and NGF-induced, but not EGF-induced, ERK activation. In contrast, EGF-induced ERK activation was inhibited by the phosphatidylinositol-3-kinase inhibitor wortmannin, which had no effect upon FGF-induced ERK activation. Rottlerin also inhibited the activation of MAP kinase kinase (MEK) in response to activated Raf, but had no effect upon c-Raf activity or ERK activation by activated MEK. These results indicate that PKCdelta functions either downstream from or in parallel with c-Raf, but upstream of MEK. Inhibition of PKCdelta also blocked neurite outgrowth induced by FGF and NGF in PC12 cells and by activated Raf in H19-7 cells, indicating a role for PKCdelta in the neurogenic effects of FGF, NGF, and Raf. Interestingly, the PKCdelta requirement is apparently cell type specific, since FGF-induced ERK activation was independent of PKCdelta in NIH 3T3 murine fibroblasts, in which FGF is a mitogen. These data demonstrate that PKCdelta contributes to growth factor specificity and response in neuronal cells and may also promote cell-type-specific differences in growth factor signaling.  (+info)

(3/833) Translocation of protein kinase Cepsilon and protein kinase Cdelta to membrane is required for ultraviolet B-induced activation of mitogen-activated protein kinases and apoptosis.

UV-induced signal transduction may be involved in tumor promotion and induction of apoptosis. The role of protein kinase C (PKC) in UVB-induced signal transduction is not well understood. This study showed that UVB markedly induced translocation of membrane-associated PKCepsilon and PKCdelta, but not PKCalpha, from cytosol to membrane. Dominant negative mutant (DNM) PKCepsilon or PKCdelta inhibited UVB-induced translocation of PKCepsilon and PKCdelta, respectively. UVB-induced activation of extracellular signal-regulated protein kinases (Erks) and c-Jun NH2-terminal kinases (JNKs) was strongly inhibited by DNM PKCepsilon and PKCdelta, whereas the DNM of PKCalpha was less effective on the UVB-induced phosphorylation of Erks and JNKs. Among the PKC inhibitors used only rottlerin, a selective inhibitor of PKCdelta, markedly inhibited the UVB-induced activation of Erks and JNKs, but not p38 kinases. Safingol, a selective inhibitor for PKCalpha, did not show any inhibitory effect on UVB-induced mitogen-activated protein kinase activation. GF109203X is a stronger inhibitor of classical PKC than novel PKC. Lower concentrations of GF109203X (<10 microM) had no effect on UVB-induced activation of Erks or JNKs. However, at higher concentrations (over 20 microM), GF109203X inhibited UVB-induced activation of JNKs, Erks, and even p38 kinases. Meanwhile, rottlerin and GF109203X markedly inhibited UVB-induced apoptosis of JB6 cells, whereas safingol had little inhibitory effect. DNM-Erk2 cells and PD98059, a selective inhibitor for mitogen-activated protein kinase/extracellular signal-regulated kinase 1 that directly activates Erks, inhibited UVB-induced apoptosis. DNM-JNK1 cells also blocked UVB-induced apoptosis, whereas SB202190, a specific inhibitor for p38 kinases, did not produce the inhibitory effect. These data demonstrate that PKCdelta and PKCepsilon, but not PKCalpha, mediate UVB-induced signal transduction and apoptosis in JB6 cells through activation of Erks and JNKs.  (+info)

(4/833) Odor response properties of rat olfactory receptor neurons.

Molecular biology studies of olfaction have identified a multigene family of molecular receptors that are likely to be involved in odor transduction mechanisms. However, because previous functional data on peripheral coding were mainly collected from inferior vertebrates, it has been difficult to document the degree of specificity of odor interaction mechanisms. As a matter of fact, studies of the functional expression of olfactory receptors have not demonstrated the low or high specificity of olfactory receptors. In this study, the selectivity of olfactory receptor neurons was investigated in the rat at the cellular level under physiological conditions by unitary extracellular recordings. Individual olfactory receptor neurons were broadly responsive to qualitatively distinct odor compounds. We conclude that peripheral coding is based on activated arrays of olfactory receptor cells with overlapping tuning profiles.  (+info)

(5/833) Protein kinase C delta is essential for etoposide-induced apoptosis in salivary gland acinar cells.

We have previously shown that parotid C5 salivary acinar cells undergo apoptosis in response to etoposide treatment as indicated by alterations in cell morphology, caspase-3 activation, DNA fragmentation, sustained activation of c-Jun N-terminal kinase, and inactivation of extracellular regulated kinases 1 and 2. Here we report that apoptosis results in the caspase-dependent cleavage of protein kinase C-delta (PKCdelta) to a 40-kDa fragment, the appearance of which correlates with a 9-fold increase in PKCdelta activity. To understand the function of activated PKCdelta in apoptosis, we have used the PKCdelta-specific inhibitor, rottlerin. Pretreatment of parotid C5 cells with rottlerin prior to the addition of etoposide blocks the appearance of the apoptotic morphology, the sustained activation of c-Jun N-terminal kinase, and inactivation of extracellular regulated kinases 1 and 2. Inhibition of PKCdelta also partially inhibits caspase-3 activation and DNA fragmentation. Immunoblot analysis shows that the PKCdelta cleavage product does not accumulate in parotid C5 cells treated with rottlerin and etoposide together, suggesting that the catalytic activity of PKCdelta may be required for cleavage. PKCalpha and PKCbeta1 activities also increase during etoposide-induced apoptosis. Inhibition of these two isoforms with Go6976 slightly suppresses the apoptotic morphology, caspase-3 activation, and DNA fragmentation, but has no effect on the sustained activation of c-Jun N-terminal kinase or inactivation of extracellular regulated kinase 1 and 2. These data demonstrate that activation of PKCdelta is an integral and essential part of the apoptotic program in parotid C5 cells and that specific activated isoforms of PKC may have distinct functions in cell death.  (+info)

(6/833) Dual efficacy of lamivudine treatment in human immunodeficiency virus/hepatitis B virus-coinfected persons in a randomized, controlled study (CAESAR). The CAESAR Coordinating Committee.

The efficacy and safety of lamivudine in persons coinfected with human immunodeficiency virus (HIV) type 1 and hepatitis B virus (HBV) were examined in the CAESAR study, a randomized placebo-controlled trial assessing the addition of lamivudine (150 mg 2x/day) or lamivudine (150 mg 2x/day) plus loviride (100 mg 3x/day) to zidovudine-containing background antiretroviral treatment. Baseline hepatitis B surface antigen (HBsAg) results were available for 1790 study subjects, of whom 122 (6.8%) tested positive. Retrospective analyses for serial HBV DNA, HBsAg, and hepatitis B e antigen (HBeAg) were performed on stored sera from 118 HBsAg-positive subjects. HBV DNA and HBeAg were present in 83% and 63%, respectively. At weeks 12 and 52, median log10 HBV DNA change was -2.0 and -2.7, respectively, in the lamivudine arms, compared with no reduction among placebo recipients (P<.001). A trend to lower alanine transferase level, and delayed progression of HIV-1 disease (relative hazard, 0.26; 95% confidence interval, 0.08-0.80) were also seen in the lamivudine arms, compared with the placebo group.  (+info)

(7/833) Apocynin improves diaphragmatic function after endotoxin administration.

Free radicals are known to play an important role in modulating the development of respiratory muscle dysfunction during sepsis. Moreover, neutrophil numbers increase in the diaphragm after endotoxin administration. Whether or not superoxide derived from infiltrating white blood cells contributes to muscle dysfunction during sepsis is, however, unknown. The purpose of the present study was to examine the effect of apocynin, an inhibitor of the superoxide-generating neutrophil NADPH complex, on endotoxin-induced diaphragmatic dysfunction. We studied groups of rats given saline, endotoxin, apocynin, or both endotoxin and apocynin. Animals were killed 18 h after injection, a portion of the diaphragm was used to assess force generation, and the remaining diaphragm was used for determination of 4-hydroxynonenal (a marker of lipid peroxidation) and nitrotyrosine levels (a marker of free radical-mediated protein modification). We found that endotoxin reduced diaphragm force generation and that apocynin partially prevented this decrease [e.g., force in response to 20 Hz was 23 +/- 1 (SE), 12 +/- 2, 23 +/- 1, and 19 +/- 1 N/cm(2), respectively, for saline, endotoxin, apocynin, and endotoxin/apocynin groups; P < 0.001]. Apocynin also prevented endotoxin-mediated increases in diaphragm 4-hydroxynonenal and nitrotyrosine levels (P < 0.01). These data suggest that neutrophil-derived free radicals contribute to diaphragmatic dysfunction during sepsis.  (+info)

(8/833) Theoretical elucidation of activity differences of five phenolic antioxidants.

AIM: To verify the effectiveness of structure-activity relationship (SAR) and theoretical calculation methods for antioxidants. METHODS: Preliminary elucidation on the differences of activities of 5 antioxidants was performed by SAR. Then semiempirical quantum chemistry method AM1 was employed to calculate the delta HOF value, the difference between the heat of formation of antioxidant and its free radical, which was used as a theoretical parameter to elucidate the differences of activities of the antioxidants thoroughly. RESULTS: delta HOF values of antioxidants were obtained as follows: ferulic acid, 150.58 kJ.mol-1; anion of ferulic acid, 122.64 kJ.mol-1; modified ferulic acid, 137.70 kJ.mol-1; anion of modified ferulic acid, 118.99 kJ.mol-1; salvianic acid, 134.17 kJ.mol-1; rutin, 137.83 kJ.mol-1, L-EGCG, 124.39 kJ.mol-1; paeonol, 176.79 kJ.mol-1. The differences of the antioxidant activities were elucidated, and how to further enhance the antioxidant activity was investigated as well. CONCLUSION: The SAR and calculation methods are rather effective to elucidate the differences of antioxidant activities, and present some new clues for structural modification of antioxidants to increase their activities.  (+info)

*  Acetophenone
... in the process with a small amount of by-product acetophenone. Acetophenone is recovered or hydrogenated to 1-phenylethanol ... Acetophenone is the organic compound with the formula C6H5C(O)CH3 (also represented by the pseudoelement symbols PhAc or BzMe ... Acetophenone is an ingredient in fragrances that resemble almond, cherry, honeysuckle, jasmine, and strawberry. It is used in ... In a 1994 report released by five top cigarette companies in the U.S., acetophenone was listed as one of the 599 additives to ...
*  Acetophenone carboxylase
... (EC 6.4.1.8) is an enzyme with systematic name acetophenone:carbon-dioxide ligase (ADP-forming). This ... Acetophenone carboxylase at the US National Library of Medicine Medical Subject Headings (MeSH) Molecular and Cellular Biology ... Jobst, B.; Schuhle, K.; Linne, U.; Heider, J. (2010). "ATP-dependent carboxylation of acetophenone by a novel type of ... enzyme catalyses the following chemical reaction 2 ATP + acetophenone + HCO3− + H2O + H+ ⇌ {\displaystyle \rightleftharpoons } ...
*  Valerophenone
Acetophenone Butyrophenone Propiophenone Klan P.; Janosek J.; Krz Z. (2000). "Photochemistry of valerophenone in solid ...
*  Phenacyl chloride
... is a substituted acetophenone. It is a useful building block in organic chemistry. Apart from that, it has ...
*  Autocatalysis
The α-bromination of acetophenone with bromine. Liesegang rings Autocatalytic surface growth of metal nanoparticles in solution ...
*  Murai reaction
Coordination of another acetophenone molecule regenerates complex 2. Kakiuchi, Fumitoshi; Kochi, Takuya (2008-10-01). " ... acetophenone coordinates to the complex via its carbonyl oxygen and agostically via its ortho C-H bond (2). As in the Ru0 ...
*  Ketone
Acetophenone (C6H5C(O)CH3) is an asymmetrical ketone. In the area of stereochemistry, asymmetrical ketones are known for being ...
*  Algestone acetophenide
The drug is the ketal formed between algestone and acetophenone. Algestone acetophenide is said to be both more potent and ...
*  Alkylimino-de-oxo-bisubstitution
70, p. 35 (1992). Article Reaction of acetophenone with methylamine in Organic Syntheses, Coll. Vol. 6, p. 818 (1988); Vol. 54 ...
*  Conolly Norman
1887). 'Cases Illustrating the Sedative Effects of Aceto-phenone (hypnone)'. Journal of Mental Science. 32: 519-25. (1887). ' ...
*  Isothiocyanate
... acetophenones". Arkivoc. 2005 (6): 356-365. doi:10.3998/ark.5550190.0006.631. Zhang, Y; Kensler, TW; Cho, CG; Posner, GH; ...
*  Metabotropic glutamate receptor 2
"Phenyl-tetrazolyl acetophenones: discovery of positive allosteric potentiatiors for the metabotropic glutamate 2 receptor". ...
*  Dakin oxidation
... acetophenone, and related substances". American Chemical Journal. 42 (6): 477-498. Hocking, M. B.; Bhandari, K.; Shell, B.; ...
*  Epigenetics
Consequently, the mice learned to fear the scent of acetophenone alone. It was discovered that this fear could be passed down ... In one example, mice were conditioned to fear a strong scent, acetophenone, by accompanying the smell with an electric shock. ... Despite the offspring never experiencing the electric shock themselves the mice still display a fear of the acetophenone scent ...
*  Flourensia cernua
Compounds isolated from the plant include flavonoids, sesquiterpenoids, monoterpenoids, acetylenes, p-acetophenones, ...
*  Bubble tea
The result indicated that the products contain styrene, acetophenone and brominated substances. The report was published by ...
*  Chlorfenvinphos
... the latter of which quickly breaks down to acetophenone. Acetophenone is then reduced to an alcohol and conjugated by ... Chlorfenvinphos is produced by reaction of triethylphosphite (P(OEt)3) with 2,2,2,4-tetrachloro acetophenone (C8H4Cl4O). In the ...
*  Cumene hydroperoxide
Products of decomposition of cumene hydroperoxide are methylstyrene, acetophenone, and cumyl alcohol. Its formula is C6H5C(CH3) ...
*  Meerwein-Ponndorf-Verley reduction
This method lead to the reduction of substituted acetophenones in up to 83%ee (Figure 5). The appeal of this method is that it ...
*  Phenylglyoxal
Alternatively, it can also be prepared by oxidation of acetophenone with selenium dioxide. Kenji Takahashi (1968). "The ...
*  Apocynin
Babu S, Raghavamenon AC, Fronczek FR, Uppu RM (2009). "4-Hydr-oxy-3-meth-oxy-5-nitro-aceto-phenone (5-nitro-apocynin)". Acta ...
*  Lanthanide trifluoromethanesulfonates
estimate 0.9 kg of AlCl3 is wasted per kilogram of dimethyl acetophenone produced. Product separation can also be difficult. ...
*  Repinotan
In the second reaction sequence, [Carbonyl-14C]-2-hydroxy-acetophenone was used first. Compound XII was formed from ... condensation of [carbonyl-14C-]-2-hydroxy-acetophenone with dimethyl oxylate and ring closure. Hydrogenolytical debenzylation ...
*  Capillin
The structure contains acetophenone and a polyyne portions, conjugated together as an ynone. Capillin is found in the essential ...
*  Acrylophenone
It is prepared using acetophenone, formaldehyde, and an amine hydrochloride in a Mannich reaction. It can be polymerized to ...
Synthesis and evaluation of N,S-compounds as chiral ligands for transfer hydrogenation of acetophenone.  Synthesis and evaluation of N,S-compounds as chiral ligands for transfer hydrogenation of acetophenone.
... Ekegren, Jenny ... The ligands have been evaluated in the asymmetric Ir-catalyzed transfer hydrogenation of acetophenone. The complexes evaluated ...
more infohttp://uu.diva-portal.org/smash/record.jsf?pid=diva2:168293
Acetophenone - Wikipedia  Acetophenone - Wikipedia
... in the process with a small amount of by-product acetophenone. Acetophenone is recovered or hydrogenated to 1-phenylethanol ... Acetophenone is the organic compound with the formula C6H5C(O)CH3 (also represented by the pseudoelement symbols PhAc or BzMe ... Acetophenone is an ingredient in fragrances that resemble almond, cherry, honeysuckle, jasmine, and strawberry. It is used in ... In a 1994 report released by five top cigarette companies in the U.S., acetophenone was listed as one of the 599 additives to ...
more infohttps://en.wikipedia.org/wiki/Acetophenone
Acetophenone carboxylase - Wikipedia  Acetophenone carboxylase - Wikipedia
Acetophenone carboxylase (EC 6.4.1.8) is an enzyme with systematic name acetophenone:carbon-dioxide ligase (ADP-forming). This ... Acetophenone carboxylase at the US National Library of Medicine Medical Subject Headings (MeSH) Molecular and Cellular Biology ... Jobst, B.; Schuhle, K.; Linne, U.; Heider, J. (2010). "ATP-dependent carboxylation of acetophenone by a novel type of ... enzyme catalyses the following chemical reaction 2 ATP + acetophenone + HCO3− + H2O + H+ ⇌ {\displaystyle \rightleftharpoons } ...
more infohttps://en.wikipedia.org/wiki/Acetophenone_carboxylase
Acetophenone, 3-chloro  Acetophenone, 3'-chloro
Mishima, M.; Huh, C.; Lee, H.W.; Nakamura, H.; Fujio, M.; Tsuno, Y., Electron affinities of acetophenones and methyl benzoates ... Chin, M.S.; Harrison, A.G., Substituent effects on ion abundances and energetics in substituted acetophenones, Org. Mass ...
more infohttps://webbook.nist.gov/cgi/cbook.cgi?ID=C99025&Units=SI&Mask=20
Acetophenone, 4-hydroxy  Acetophenone, 4'-hydroxy
Acetophenone, p-hydroxy-; Hydroxyacetophenone, para; USAF KF-15; p-Acetylphenol; 4-Acetylphenol; 4-Hydroksyacetofenol; NSC 3698 ...
more infohttps://webbook.nist.gov/cgi/cbook.cgi?ID=C99934&Mask=8
Acetophenone - wikidoc  Acetophenone - wikidoc
Acetophenone is a crystalline ketone that is used as a solvent for cellulose ethers and esters in the manufacture of alcohol- ... Acetophenone is used to create fragrances that resemble almond, cherry, honeysuckle, jasmine, and strawberry. It is used in ... Currently acetophenone mainly comes as a by-product of the phenol-acetone synthesis in the cumene oxidation process. At one ... In a 1994 report released by five top cigarette companies, acetophenone was listed as one of the 599 additives to cigarettes.[1 ...
more infohttps://www.wikidoc.org/index.php/Acetophenone
2-(4-Cyanophenyl)acetophenone | CAS No. 59824-23-6 | Sigma-Aldrich  2-(4-Cyanophenyl)acetophenone | CAS No. 59824-23-6 | Sigma-Aldrich
... acetophenone; CAS Number: 59824-23-6; Linear Formula: C15H11NO; find Rieke Metals, Inc.-RIE156323220 MSDS, related peer- ...
more infohttps://www.sigmaaldrich.com/catalog/buildingblock/product/riekemetalsinc/rie156323220?lang=en®ion=US
159896-31-8 - 3-(Pentafluorothio)acetophenone, 97% - 3-(Pentafluorosulfur)acetophenone - H33532 - Alfa Aesar  159896-31-8 - 3'-(Pentafluorothio)acetophenone, 97% - 3'-(Pentafluorosulfur)acetophenone - H33532 - Alfa Aesar
Sicherheitshinweise: P261-P280a-P305+P351+P338-P304+P340-P405-P501a Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations. ...
more infohttps://www.alfa.com/de/catalog/H33532/
Acetophenone azine:  a new shoe allergen causing severe foot dermatitis  Acetophenone azine: a new shoe allergen causing severe foot dermatitis
Charlotte De Fré; Ola Bergendorff; Nadia Raison‐Peyron; Karen van de Voorde; Elien Romaen; Julien Lambert; Christina Persson; Olivier Aerts + Author Information ...
more infohttps://insights.ovid.com/codr/201712000/00003184-201712000-00015
3-Fluoro-5-(pentafluorothio)acetophenone, 97% - 3-Fluoro-5-(pentafluorosulfur)acetophenone - H33302 - Alfa Aesar  3'-Fluoro-5'-(pentafluorothio)acetophenone, 97% - 3'-Fluoro-5'-(pentafluorosulfur)acetophenone - H33302 - Alfa Aesar
Mentions de prudence: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant ...
more infohttps://www.alfa.com/fr/catalog/H33302/
Triplet state photochemistry and the three-state crossing of acetophenone within time-dependent density-functional theory ...  Triplet state photochemistry and the three-state crossing of acetophenone within time-dependent density-functional theory ...
We take acetophenone as a test molecule, for which accurate ab initio results exist in the literature. Triplet acetophenone is ... 74 ATOMIC AND MOLECULAR PHYSICS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACETOPHENONE; DENSITY FUNCTIONAL ... Title: Triplet state photochemistry and the three-state crossing of acetophenone within time-dependent density-functional ... Journal Article: Triplet state photochemistry and the three-state crossing of acetophenone within time-dependent density- ...
more infohttps://www.osti.gov/scitech/biblio/22254159-triplet-state-photochemistry-three-state-crossing-acetophenone-within-time-dependent-density-functional-theory
One pot synthesis of 3,5-alkylated acetophenone and methyl benzoate derivatives via an anionic domino process - Chemical...  One pot synthesis of 3,5-alkylated acetophenone and methyl benzoate derivatives via an anionic domino process - Chemical...
5-alkylated acetophenones and methyl benzoate derivatives respectively via an anionic domino process. ... One pot synthesis of 3,5-alkylated acetophenone and methyl benzoate derivatives via an anionic domino process R. Ballini, L. ... One pot synthesis of 3,5-alkylated acetophenone and methyl benzoate derivatives via an anionic domino process ...
more infohttp://pubs.rsc.org/en/Content/ArticleLanding/CC/2005/B500846H
Synthesis of new bipyridine N,N′-dioxides and their application in asymmetric allylation of benzaldehyde and aldol addition to...  Synthesis of new bipyridine N,N′-dioxides and their application in asymmetric allylation of benzaldehyde and aldol addition to...
N′-dioxides and their application in asymmetric allylation of benzaldehyde and aldol addition to acetophenone. ... benzaldehyde with allyltrichlorosilane and aldol reaction of trichlorosilyl ketene acetal of methyl acetate with acetophenone. ...
more infohttps://link.springer.com/article/10.1007%2Fs00706-018-2289-5
Pteleifolols A-E, acetophenone di- C-glycosides and a benzopyran dimer from the leaves of Melicope pteleifolia | Springer for...  Pteleifolols A-E, acetophenone di- C-glycosides and a benzopyran dimer from the leaves of Melicope pteleifolia | Springer for...
Four new acetophenone di- C-glycosides, pteleifolols A-D ( 1- 4) and a new dimeric benzopyran, pteleifolol E ( 5), were ... Four new acetophenone di-C-glycosides, pteleifolols A-D (1-4) and a new dimeric benzopyran, pteleifolol E (5), were isolated ... Pteleifolols A-E, acetophenone di-C-glycosides and a benzopyran dimer from the leaves of Melicope pteleifolia ... Melicope pteleifolia Rutaceae Acetophenone Dimeric benzopyran Pteleifolols A-E This is a preview of subscription content, log ...
more infohttps://rd.springer.com/article/10.1007/s11418-016-1035-8
Reduction of acetophenone to R(+)-phenylethanol by a new alcohol dehydrogenase from Lactobacillus kefir - Semantic Scholar  Reduction of acetophenone to R(+)-phenylethanol by a new alcohol dehydrogenase from Lactobacillus kefir - Semantic Scholar
Important enzymological data of the dehydrogenase are: K m (acetophenone) 0.6 mM, K m (NADPH) 0.14 mM, and a pH optimum for ... Besides acetophenone several other aromatic and long-chain aliphatic secondary ketones are substrates for this enzyme. Batch ... acetophenone reduction at 7.0. Addition of EDTA leads to complete deactivation of the enzyme activity. Added iodoacetamide or p ... A new alcohol dehydrogenase catalysing the enantioselective reduction of acetophenone to R(+)-phenylethanol was found in a ...
more infohttps://www.semanticscholar.org/paper/Reduction-of-acetophenone-to-R%28%2B%29-phenylethanol-by-Hummel/5e416367784ed68b9eac005293be65213a961945
Acetophenone | Tut2learn  Acetophenone | Tut2learn
Tag Archives: Acetophenone. Names Of Carbon Compounds. COMMON NAME IUPAC NAME Acetaldehyde ethanal Acetic acid Ethanoic acid ... Acetophenone Phenyl Acetopohenone Acetone Propanone Acetonitrile Ethanonitrile Acetylene Ethyne Aniline Phenylamine ...
more infohttp://tut2learn.com/tag/acetophenone/
Acetophenone With Good Price China Manufacturers & Suppliers & Factory  Acetophenone With Good Price China Manufacturers & Suppliers & Factory
We are Professional Manufacturer of Acetophenone With Good Price company, Factory & Exporters specialize in Acetophenone With ... Find Acetophenone With Good Price Manufacturers & Suppliers from China. ... Acetophenone With Good Price - manufacturer, factory, supplier from China. * * Supply Acetophenone With Good Price CAS 98-86-2 ... Home > Tags > Acetophenone With Good Price(Total 24 Products for Acetophenone With Good Price) ...
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SUBSTITUTED ACETOPHENONES USEFUL AS PDE4 INHIBITORS - Patent application  SUBSTITUTED ACETOPHENONES USEFUL AS PDE4 INHIBITORS - Patent application
Patent application title: SUBSTITUTED ACETOPHENONES USEFUL AS PDE4 INHIBITORS. Inventors: Jakob Felding (Charlottenlund, DK) ... 0001] This invention relates to novel substituted acetophenones and derivatives thereof, processes for the preparation thereof ... where ring B is attached to the acetophenone; [0281] In another embodiment when R3 is hydrogen, then one of X1, X2, X3, X4 or X ...
more infohttp://www.patentsencyclopedia.com/app/20130012716
ATP-dependent carboxylation of acetophenone by a novel type of carboxylase. - Semantic Scholar  ATP-dependent carboxylation of acetophenone by a novel type of carboxylase. - Semantic Scholar
The subsequent carboxylation of acetophenone to benzoylacetate is catalyzed by an acetophenone-induced enzyme, which has been ... The same enzyme is involved in acetophenone metabolism in the absence of ethylbenzene. Acetophenone carboxylase consists of ... Carboxylation of acetophenone is dependent on ATP hydrolysis to ADP and P(i), exhibiting a stoichiometry of 2 mol ATP per mol ... Acetophenone carboxylase activity was restored by mixing the purified subcomplexes. The enzyme contains 1 Zn(2+) ion per ...
more infohttps://www.semanticscholar.org/paper/ATP-dependent-carboxylation-of-acetophenone-by-a-of-Jobst-Sch%C3%BChle/77f1f039fb19d46e17c990ae021b6a12e5bec986
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  • In continuation of this research, we have reported density ( ρ ), viscosity ( η ), refractive index ( n D ) and sound speed ( u ) of pure acetophenone and propyl acetate for the binary system constituted by these two chemicals at temperatures of 303.15, 313.15 and 323.15 K. The viscosity values have been fitted to McAllister and Krishnan and Laddha model. (sapub.org)
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  • Densities, viscosities, refractive indices and ultrasonic velocities of the binary mixtures of Acetophenone with Propyl acetate were measured over the entire mole fractions at (303.15, 313.15 and 323.15) K. From these experimental results, excess molar volumes V E , viscosity deviation ∆η, refractive index deviation ∆n D , deviations in isentropic compressibility ∆K s and excess intermolecular free length ∆L f are calculated. (sapub.org)