PURPOSE:To dissolve a trouble due to clogging at the beginning of ester exchange reaction, by reacting a lower alkyl ester of a discarboxylic acid and glycol, with the inside of a fractionating tower-being wetted with a lower alcohol or glycol. CONSTITUTION:In the ester exchange reaction, in...
Evidence is presented suggesting that alcoholysis and ester formation (Reactions 1 and 2), catalyzed by carboxylic acids, are important reactions of esters that could lead to larger molecules. Acidolysis (Reaction 3) proceeded at a comparatively slow rate and ester exchange reaction products (...
PURPOSE: To obtain a reaction product of an ester which is excellent not only in oxidation resistance, hydrolysis resistance, etc., but also in compatibility with a hydrogen-containing fluoroalkane refrigerant and is suitable as a synthetic lubricant. ;CONSTITUTION: This reaction product of an ester...
Ester, any of a class of organic compounds that react with water to produce alcohols and organic or inorganic acids. Esters derived from carboxylic acids are the most common. Learn about the different types and reactions of esters and more in this articl
A process for poly(ester-carbonates) from dihydric phenols, especially bisphenol A; aromatic or cycloaliphatic dicarboxylic acids, especially terephthalic acid; and phosgene as carbonate precursor wherein a reaction of the acid and phosgene is carried out in a first stage forming dicarboxylic acid chl...
The present invention relates to resin compositions comprising a mixture of at least two resins, one resin consisting of the reaction product of an epoxidized fatty acid ester of a polyvalent alcohol with a carboxylic acid, and another resin consisting of a carboxylic acid-modified ester of a pol...
Application to the synthesis of tartronic acid derivativesElectronic supplementary information (ESI) available: Spectrosco... Therefore, aroyl ester10, synthesised by the Passerini reaction of benzylglyoxylamide (1), cyclohexyl isocyanide (3a) andp-toluic acid, was subRosa M... RM Carrillo - 《Gre...
Step 1: Deprotonation To Give An Enolate Step 2: SN2 Reaction Of The Enolate Nucleophile With An Alkyl Halide Electrophile Step 3: Acidic Ester Hydrolysis Step 4: Decarboxylation To Give An Enol Step 5: Tautomerization Of The Enol Back To The Carboxylic Acid ...
PROCESS:A carboxylic acid of formula II or its reactive derivative, reacts with an alcohol of formula III (A is OH, etc.) or its reactive derivative, if necessary in the presence of a suitable solvent, a reaction assistant or a catalyst, to give the titled compound of formula I. 展开 ...
Michael reaction of conjugated nitro olefins with carboxylic acid dianions and with ester enolates: new synthesis of .gamma.-keto acids and .gamma.-keto es... M Miyashita,R Yamaguchi,A Yoshikoshi - 《Journal of Organic Chemistry》 被引量: 62发表: 1984年 Michael reaction of conjugated nitro ...