Results 321 to 330 of about 319,390 (394)
Some of the next articles are maybe not open access.
2008
[2258-42-6] C3H4O3 (MW 88.06) InChI = 1S/C3H4O3/c1-3(5)6-2-4/h2H,1H3 InChIKey = ORWKVZNEPHTCQE-UHFFFAOYSA-N (useful formylating agent for the hydroxyl,2 phenol,3 and amine groups4 as well as other heteroatoms;5 useful for the synthesis of aldehydes from aromatic Grignard reagents,6 for the preparation of formyl fluoride,7 and ...
Amy R. Howell +2 more
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[2258-42-6] C3H4O3 (MW 88.06) InChI = 1S/C3H4O3/c1-3(5)6-2-4/h2H,1H3 InChIKey = ORWKVZNEPHTCQE-UHFFFAOYSA-N (useful formylating agent for the hydroxyl,2 phenol,3 and amine groups4 as well as other heteroatoms;5 useful for the synthesis of aldehydes from aromatic Grignard reagents,6 for the preparation of formyl fluoride,7 and ...
Amy R. Howell +2 more
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Analytica Chimica Acta, 1988
Abstract Coulometric generation of acetyl (CH 3 CO + ) ions by oxidation of mercury in acetic anhydride and in acetic acid/acetic anhydride (5:95, v/v) is described. Current/potential curves for solvents, titrated bases, indicator and mercury showed that in both these solvents mercury is oxidized at potentials which are much more negative than those ...
Vilim J. Vajgand +3 more
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Abstract Coulometric generation of acetyl (CH 3 CO + ) ions by oxidation of mercury in acetic anhydride and in acetic acid/acetic anhydride (5:95, v/v) is described. Current/potential curves for solvents, titrated bases, indicator and mercury showed that in both these solvents mercury is oxidized at potentials which are much more negative than those ...
Vilim J. Vajgand +3 more
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Bromination of isoprene in acetic anhydride
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1977The reaction of bromine with isoprene in acetic anhydride as the medium proceeds as competing brominnation and bromoacetoxylation.
F. Kh. Agaev +3 more
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Catalytic Cracking of Acetic Acid to Acetic Anhydride
Industrial & Engineering Chemistry Process Design and Development, 1968Catalytic cracking of acetic acid using triethyl phosphate and silica gel catalysts was investigated. The desired reaction leading to ketene is accompanied by side reactions: two parallel with respect to acetic acid decomposition and the consecutive ketene decomposition reactions.
Padmanabhan, Narayanan +2 more
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Effect of Acetic Anhydride on the Oxidation of Toluene to Benzaldehyde with Metal/Bromide Catalysts
, 2014Acetic anhydride (AA) was used as specific additive for liquid-phase oxidation of toluene in acetic acid to weaken the corrosivity of reaction system and increase the yield of benzaldehyde by using Co/Mn/Br catalyst system and 1,1,2,2-tetrabromoethane as
Wu Xiankun +4 more
semanticscholar +1 more source
Formation of acetic anhydride by carbonylation of methyl acetate
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 19851. It was found that the activity and selectivity of halides of rhodium, ruthenium, and palladium for carbonylation of methyl acetate to acetic anhydride vary according to the series: RhCl3>RuCl3>PdCl2. 2. The optimum conditions for synthesis of acetic anhydride by carbonylation of methyl acetate have been found. 3.
S. D. Pirozhkov +5 more
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A SEMIQUANTITATIVE METHOD FOR THE DETECTION OF ACETIC ANHYDRIDE IN ACETIC ACID
Canadian Journal of Research, 1949When acetic acid is handled in aluminum, it is important, for reasons of corrosion resistance, that the acid be not completely anhydrous, a condition that results if traces of acetic anhydride are present. A quick colorimetric test depending on the reaction between acetic anhydride with aniline has been developed by which it is possible to detect 0.05%
G. Benson, R. M. Kitchen
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Sampling and analysis of acetic anhydride in air
American Industrial Hygiene Association Journal, 1979This paper describes the development of a new method for monitoring acetic anhydride in the presence of acetic acid in the occupational environment. The method consisted of collecting airborne acetic anhydride on a solid sorbent, desorbing it with acetone and analyzing it by gas chromatography.
W.J. Vincent, A.H. Qazi
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The solvolysis of topotecan in alcohols and acetic anhydride
Bioorganic & Medicinal Chemistry Letters, 2011Six derivatives of 10-hydroxycamptothecin were prepared via solvolysis of topotecan in corresponding alcohols and acetic anhydride. We attributed the specific reactivity of topotecan to the internal hydrogen-bonding between 10-hydroxy and the nitrogen atom in position 9.
Mengjie Dong +3 more
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, 2013
The kinetics of the reactions of acetic anhydride-excess water has been studied at higher temperatures up to 366K under adiabatic conditions in a thermos-flask fitted with a negative coefficient thermistor and kinetic data reported in this work. The same
N. Asiedu, Hildebr, D. Glasser
semanticscholar +1 more source
The kinetics of the reactions of acetic anhydride-excess water has been studied at higher temperatures up to 366K under adiabatic conditions in a thermos-flask fitted with a negative coefficient thermistor and kinetic data reported in this work. The same
N. Asiedu, Hildebr, D. Glasser
semanticscholar +1 more source