Patent ID: 6326506
Filing Date: 2001-12-04
Classification: C07F

Abstract:
A method of preparing an organosilicon compound comprising effecting a hydrosilylation reaction between (a) unsaturated compounds with terminal unsaturated groups and (b) silane compounds described by formula HSiR.sup.0.sub.m W.sub.3-m, where W is selected from the group consisting of C.sub.1 to C.sub.6 alkoxy groups, C.sub.6 to C.sub.10 aryloxy groups, and halogen atoms, R.sup.0 is an organic group, and m is 0, 1, or 2 in the presence of (c) a platinum catalyst and (d) an auxiliary catalyst selected from the group consisting of (1) silyl esters of acids derived from oxo acids of sulfur; (2) amide compounds having N--Si bonds; (3) urea compounds; (4) silyl esters of carbamic acid; (5) phosphoric acid compounds; and (6) cyclic compounds described by the following formulas selected from the group consisting of (i) hydroxypyridine compounds, (ii) 8-hydroxyquinoline compounds, (iii) oxazolidinone compounds, and (iv) N-hydroxysuccinimide compounds: ##STR3##where R.sup.9, R.sup.10, R.sup.11, R.sup.12, R.sup.13, and R.sup.14 are each independently selected from the group consisting of hydrogen atoms, halogen atoms, C.sub.1 to C.sub.10 alkyl groups, C.sub.6 to C.sub.10 aryl groups, C.sub.1 to C.sub.10 alkoxy groups, and groups described by R.sup.2.sub.3 Si--, where each R.sup.2 is independently selected from the group consisting of C.sub.1 to C.sub.10 hydrocarbon groups, C.sub.1 to C.sub.10 alkoxy groups, chlorine atoms, and hydrogen atoms with a maximum of 2 hydrogen atoms present; and X is a hydrogen atom or a group described by R.sup.2.sub.3 Si--, where R.sup.2 is the same as described above.