Topic
Acetone
About: Acetone is a research topic. Over the lifetime, 9458 publications have been published within this topic receiving 120867 citations. The topic is also known as: propanone & dimethylketone.
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TL;DR: In this paper, the effects of glycerol ether additives on the anti-wear properties of low-viscosity base oil have been characterised under mild conditions (atmospheric pressure and temperatures of 40-70°C).
45 citations
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TL;DR: The reactions of the alkenes with supercritical organic compounds under non-catalytic conditions were investigated in this article, where H and CR 2 OH, CH 2C OCH 3 or CH 2 C N of supercritical alcohols (CHR 2 OH), acetone (CH 3 C OCH3 ) or acetonitrile ( CH 3 C N) were investigated.
45 citations
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TL;DR: Horse liver esterase, used as its inexpensive commercial acetone powder, catalyzes the selective hydrolysis of methyl 2-alkyl-2-arylacetates to afford R(−)-2 -alkyl 2 -acetyl 2-arylacetic acids and S(+)-methyl 2 −alkyl -2-acetylacetates.
45 citations
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TL;DR: Findings point to the possibility that certain mixtures of organic solvents are more damaging to membranes than the components of the mixture would indicate, and suggest that the experimental model used might help in showing mixtures that are particularly harmful.
Abstract: A simple experimental model was used to study the influence of organic solvents and solvent mixtures on the integrity of biological membranes. Radiolabelled membranes were prepared biosynthetically by growing Escherichia coli in the presence of 14C-oleic acid; the bulk of the radioactivity was incorporated into 14C-phosphatidylethanolamine, the predominant phospholipid species in E coli membranes. The radiolabelled bacteria were incubated at 37 degrees C in the presence of solvent, and the mixture filtrated through a Millipore 0.45 micron filter. This filtration retained radiolabel associated with the bacteria, and only radiolabel released as a result of solvent action was allowed through the filter. The radioactivity in the filtrate was then counted and expressed as a percentage of the total radioactivity. Results showed that aliphatic alcohols released membrane constituents in relation to their hydrocarbon chain length (1-propanol greater than 2-propanol greater than ethanol greater than methanol); the effects of aliphatic alcohols were potentiated by acetone, ethyl methyl ketone, ethylene glycol, and N,N'-dimethylformamide, and the effects of ethanol were potentiated by 1-butanol, benzyl alcohol, and ethylacetate. These findings point to the possibility that certain mixtures of organic solvents are more damaging to membranes than the components of the mixture would indicate, and suggest that the experimental model used might help in showing mixtures that are particularly harmful.
45 citations
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TL;DR: In this article, the effects of the molar ratio of the reactants and the reaction temperature on the yields of esters, ketones, and aldehydes have been examined.
Abstract: Vapor phase reactions of a mixture of two types of primary alcohols to esters and ketones over a reduced copper catalyst have been investigated. The reactions between primary alcohols and propionaldehyde have also been investigated. The effects of the molar ratio of the reactants and the reaction temperature on the yields of esters, ketones, and aldehydes have been examined. A mixture of ethyl alcohol and propyl alcohol when passed over the catalyst, the main products have been found to be propyl acetate, ethyl acetate, propyl propionate, ethyl propionate, ethyl methyl ketone, diethyl ketone, acetone, acetaldehyde, and propionaldehyde. The formation of the ester and the ketone may be presented as follows: (Remark: Graphics omitted.)
45 citations