| 摘要 |
Process for the preparation of a monocarboxylic or dicarboxylic acid by oxidative scission of an olefine or its corresponding vicinal dihydroxy compound. An olefine of the formula R1-CH=CH-R2 or R1-CH=CH2 or a vicinal dihydroxy compound of formula R1-CHOH-CHOH-R2 or R1-CHOH-CH2OH (wherein R1 and R2 are either equal to or different from each other, and possibly substituted with groups inert under the reaction conditions, represent hydrocarbon groups such as the alkyls having up to 30 carbon atoms; the cycloalkyls, possibly branched or substituted and having from 3 to 12 carbon atoms; the aryls and alkylaryls having from 6 to 12 carbon atoms; moreover, R1 and R2 may be bound to each other so as to form a cyclic alkenyl or cycloalkyl having up to 12 carbon atoms) are reacted, with vigorous stirring, with H2O2, at a temperature between 0 DEG and 120 DEG C., and under a pressure of between 1 and 100 atmospheres; and including an aqueous phase containing H2O2 and an organic phase consisting or consisting essentially of a solvent, the olefine or the vicinal dihydroxy compound, and a catalyst.
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