Method for the preparation of ketones

摘要

Method for the preparation of ketones, by means of oxydation of the corresponding secondary alcohols, characterized in that said alcohols are catalytically oxidized by H2O2 inside a two-phase system comprising: (a) an aqueous phase, containing hydrogen peroxide as the oxidizing agent; (b) an organic phase, containing a secondary alcohol and optionally a solvent immiscible with said aqueous phase, as well as a peroxidic catalyst having the general formula Q3XW4O24, wherein X represents an atom of phosphorus or of arsenic and wherein Q represents a quaternary cation, containing hydrocarbon groups having a total of from 20 to 70 C atoms.