Patent ID: 7439384

Claim:
A process for the preparation of a peroxyester said process comprising conducting the following sequential steps: (a) reacting an hydroxyhydroperoxide with a base in the absence of an organic solvent, and with a molar ratio R a of the base to the hydroperoxide of between 0.9 and 1.3, to obtain a salt of the hydroxyhydroperoxide, (b) on completion of step (a) reacting resultant salt of hydroxyhydroperoxide with an acid chloride or an acid anhydride in the absence of an organic solvent to form a peroxyester, wherein the mol ratio R b of the hydroxyhydroperoxide corresponding to the salt to the acid halide is between 0.5 and 1.5 or the mol ratio R b of the hydroxyhydroperoxide corresponding to the hydroxyhydroperoxide salt to the acid anhydride is between 1.0 and 3.0, (c) recovering said peroxyester from step (b) so as to produce a final product, said recovery being conducted in the absence of an organic solvent, and wherein the hydroxyhydroperoxide is a hydroxy(tertiary-alkyl) hydroperoxide in which the hydroxyl group is situated in the 3 position with respect to the hydroperoxy group.