Patent ID: 6770774
Filing Date: 2004-08-03
Classification: C07C,C08F

Abstract:
A process for the preparation of the mixed peroxy ester or mixed peroxy carbonate having the formula IV, with the oxygen in parentheses being absent for the peroxy ester and present for the peroxy carbonate: wherein R1, R2, R5, R6 and R7 are independently selected from the group consisting of hydrogen, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 aralkyl, and C7-C20 alkaryl, or R1 and R2 form a C3-C12 cycloalkyl group, which alkyl groups may include linear or branched alkyl moieties, and each of R1, R2, R5, R6 and R7 may optionally be substituted with one or more groups selected from hydroxy, alkoxy, linear or branched alkyl, aryloxy, halogen, ester, carboxy, nitrile, and amido, R3 and R4 are independantly selected from the group consisting of C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C7-C20 aralkyl, and C7-C20 alkaryl, which groups may include linear or branched alkyl moieties, and each of R3 and R4 may optionally be substituted with one or more groups selected from hydroxy, alkoxy, linear or branched alkyl, aryloxy, halogen, ester, carboxy, nitrile, and amido,any pair of the optionally substituted R4, R5, R6 and R7 may form a ring, which process comprises the reaction of the corresponding monoperoxy ester or monoperoxy carbonate with the formula I, with the oxygen in the parentheses being absent for the monoperoxy ester and present for the monoperoxy carbonate: â€ƒwherein R1, R2, and R3 have the identified meaning, with an alkyl vinyl ether with the formula Va or with an acetal with the formula Vb: wherein R4-R7 have the same meanings as given above, in the presence of a catalyst.