Patent ID: 6365696
Filing Date: 2002-04-02
Classification: C07F

Abstract:
A process comprising reacting a) an ethylenically unsaturated epoxide of the formula: where R is a single bond or an alkylene optionally containing alkyl pendant groups; R1 is a hydrogen, alkyl, straight, branched, or cyclic; R2 and R3 are individually hydrogen, straight, branched or cyclic alkyl, or any two of R1, R2 and R3, taken together are alkylene and, combined with the carbon atom or atoms to which they are attached, form a 5 to 12 carbon cyclic ring, optionally containing alkyl pendants; and the number of carbon atoms in R, R1, R2, and R3 are such that the total number of carbon atoms in the epoxide is from 4 to 50, with (b) an alkoxysilane with the general formula R4n(OR4)3âˆ’nSiH wherein R4 is a branched or linear alkyl group of 1 to 18 carbon atoms, a cyclic alkyl group of four to eight carbon atoms or an aryl, alkaryl, or aralkyl group of six to twelve carbon atoms, optionally containing halogen, oxygen, or nitrogen substituents with the proviso that such substituents do not interfere with either hydrosilation or promotion, and n is an integer selected from 0, 1, and 2, in the presence of (c) a catalytically effective amount of a platinum catalyst and (d) an ammonium propionate or a sodium propionate.