Patent ID: 7005281
Filing Date: 2006-02-28
Classification: C07F,C12P

Abstract:
1. A process for preparing organosilicon group containing photoinitiators of the formula I wherein m is a number from 1 to 200; q is 0 or 1; A is IN-C(O)—O—CHR A′ is A or R R R Y is a divalent group C IN is a photolabile functional moiety of the formula II or III  wherein R R R X is —(CH which process comprises reacting a photolabile functional moiety containing a carboxy group (IN-COOH) or an alkoxycarbonyl group (IN-CO—OC  wherein m, R B is —Y—CHR B′ is B or R in the presence of an enzyme which catalyzes the esterification, transesterification or amidation reaction.