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Current Science Aug 1950
Topics: Acetates; Acetic Acid; Alternaria; Biological Phenomena; Fungi; Physiological Phenomena
PubMed: 14778308
DOI: No ID Found -
The Journal of Organic Chemistry Jun 2014A copper catalyst system for the asymmetric 1,4-hydrosilylation of the α,β-unsaturated carboxylate class was developed by which synthesis of (+)- and (-)-enantiomers...
A copper catalyst system for the asymmetric 1,4-hydrosilylation of the α,β-unsaturated carboxylate class was developed by which synthesis of (+)- and (-)-enantiomers of 1,2-benzothiazine-1,1-dioxide acetates has been achieved with a good yield and an excellent level of enantioselectivity. A comparative structure-activity relationship study yielded the following order of aldose reductase inhibition activity: (-)-enantiomers > racemic > (+)-enantiomers. Further, a molecular docking study suggested that the (-)-enantiomer had significant binding affinity and thus increased inhibition activity.
Topics: Acetates; Acetic Acid; Aldehyde Reductase; Aldehydes; Catalysis; Copper; Enzyme Inhibitors; Stereoisomerism; Thiazines
PubMed: 24785266
DOI: 10.1021/jo500338c -
Journal of Chromatography Feb 1991Laboratory-made capillary columns with high effectiveness and inertness were used for the determination of N-acetyl groups in chitin-containing biological products by...
Laboratory-made capillary columns with high effectiveness and inertness were used for the determination of N-acetyl groups in chitin-containing biological products by liberation of acetic acid in 4 M HCl hydrolysates. The quantitative gas chromatographic analysis is fast, requiring only 2 min, with good precision and accuracy. After a long working period of more than 1000 analyses the capillary column retained its high effectiveness and inertness.
Topics: Acetates; Acetic Acid; Acetylation; Chitin; Chromatography, Gas; Glucosamine; Hydrogen-Ion Concentration
PubMed: 2016386
DOI: 10.1016/s0021-9673(01)88864-6 -
Quantitative estimation as acetic acid of acetyl, ethylidene, ethoxy, and alpha-hydroxyethyl groups.Canadian Journal of Research Sep 1947
Topics: Acetates; Acetic Acid
PubMed: 20266507
DOI: 10.1139/cjr47b-057 -
Spectrochimica Acta. Part A, Molecular... 2014This study represents the conformation, tautomeric stability, protonation and deprotonation effects, vibrational, electronic, NBO and NMR aspects of...
Molecular structure, tautomeric stability, protonation and deprotonation effects, vibrational, NMR and NBO analyses of 2,4-Dioxoimidazolidine-5-acetic acid (DOIAA) by quantum chemical calculations.
This study represents the conformation, tautomeric stability, protonation and deprotonation effects, vibrational, electronic, NBO and NMR aspects of 2,4-Dioxoimidazolidine-5-acetic acid (DOIAA). Theoretical calculations were performed by ab initio HF and density functional theory (DFT)/B3LYP method using 6-311++G(d,p) basis sets. Tautomerism and the effect of solvent on the tautomeric equilibria in the gas phase and in different solvents were studied. The protonation and deprotonation effects on the reactivity and conformations of DOIAA were investigated. Electronic transitions were also studied and the most prominent transition corresponds to π→π*. Natural bond orbital (NBO) analysis was also carried out to find the intramolecular interactions and their stabilization energy. In DOIAA, the interaction between the lone pair donor orbital (n(LP1N5)) and the acceptor antibonding orbital π*(C6O7) reveals the strong stabilization energy of 224.9 kJ mol(-1). Molecular electrostatic potential (MEP) was calculated to predict the reactive sites of the title compound. The NMR results indicated that the observed chemical shifts for NH, COOH protons of DOIAA not only depend on the structure of the molecule being studied but also on the nature of the solvent, concentration of the sample and the presence of the other exchangeable protons.
Topics: Acetates; Acetic Acid; Electrons; Hydantoins; Magnetic Resonance Spectroscopy; Models, Molecular; Molecular Conformation; Protons; Quantum Theory; Spectroscopy, Fourier Transform Infrared; Spectrum Analysis, Raman; Static Electricity; Stereoisomerism; Thermodynamics; Vibration
PubMed: 24291430
DOI: 10.1016/j.saa.2013.10.101 -
Proceedings of the Society For... May 1951
Topics: Acetates; Acetic Acid; Alkalies; Glucuronic Acid; Humans; Physiological Phenomena; Sulfanilamide; Sulfanilamides; Sulfonamides
PubMed: 14844395
DOI: 10.3181/00379727-77-18678 -
Angewandte Chemie (International Ed. in... Feb 2003
Topics: Acetic Acid; Carbon Monoxide; Catalysis; Fungi; Methane; Molecular Structure; Vanadium
PubMed: 12596211
DOI: 10.1002/anie.200390219 -
Journal of Bacteriology Dec 1948
Topics: Acetates; Acetic Acid; Carbon Dioxide; Clostridium; Fermentation; Lactates; Lactic Acid
PubMed: 16561630
DOI: 10.1128/jb.56.6.777-779.1948 -
Canadian Journal of Research Sep 1947
Topics: Acetates; Acetic Acid; Methenamine
PubMed: 20266506
DOI: 10.1139/cjr47b-056 -
Canadian Journal of Research Jun 1949
Topics: Acetates; Acetic Acid; Acetic Anhydrides
PubMed: 18152119
DOI: 10.1139/cjr49f-027