6283-86-9Relevant articles and documents
METHOD OF PREPARING HYDROXYALKYLCARBOXYLIC ACID ESTERS
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Page/Page column 15; 16; 17, (2018/04/27)
The present invention relates to a method of preparing an ester by reacting a carboxyl acid with a (C1-C36)alcohol in the presence of a catalyst. The method is particularly suitable for the reaction of hydroxyalkylcarboxylic acids and fatty alcohols.
Continuous Method For Producing Esters Of Aliphatic Carboxylic Acids
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Page/Page column 10, (2012/05/07)
The invention relates to a continuous method for producing aliphatic carbonic acid esters by reacting at least one aliphatic carboxylic acid of formula (I) R1—COOH (I), wherein R1 represents hydrogen or an optionally substituted aliphatic hydrocarbon group with 1 to 50 carbon atoms, with at least one alcohol of formula (II) R2—(OH)n (II), wherein R2 represents an optionally substituted hydrocarbon group with 1 to 100 C atoms and n is an integer from 1 to 10, in the presence of at least one transesterification catalyst in a reaction tube the longitudinal axis of which extends in the direction of propagation of the microwaves of a monomode microwave applicator, under microwave irradiation to form the ester.
Process for the preparation of alkyl esters from commercial lactic acid
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Example 5, (2008/06/13)
The present invention relates to a catalyst-free process for the conversion of commercial lactic acid to alkyl ester of carbon C1to C8which comprises simultaneous hydrolysis of dimers or highpolymers of lactic acid present in commercial lactic acid to free lactic acid and esterification of free lactic acid with an alcohol in the presence of water at a temperature in the range of 130-250° C. for 4-11 hrs at a pressure of 5-25 kg/cm2, to obtain desired esters.