Method of preparation of carboxylic acids by the oxidizing cleavage of a diol vicinal

摘要

The present invention relates to a process for the preparation of carboxylic acids, in particular of mono- and di - carboxylic acids, by oxidizing cleavage of a diol vicinal. According to the invention, this method consists in reacting a vicinal diol of formula i: in which: p is an integer between 1 and 6; r1 and r2 represent, independently: - an alkyl or hydroxyalkyl group having from 1 to 12 carbon atoms; - a group - (ch2) n - co2m in which n, which can be identical or different in r1 and r2, is an integer between 1 and 11 and m represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms or an alkaline cation, or r1 and r2 together form an alkylene group - (ch2) m - in which m is an integer between 2 and 10, preferably between 2 and 6, with the sodium hypochlorite (or bleach) of industrial purity, in the absence of an organic solvent and without the addition of catalyst, preferably at ambient temperature. The application: score of the vegetable oils of natural origin