Patent ID: 7262315
Filing Date: 2007-08-28
Classification: B01J,C07B,C07C,C07F

Abstract:
1. A method for catalyzing a hydrosilylation reaction, comprising contacting (a) an electrophilic reactant containing an electrophilic site in the form of an unsaturated bond between a carbon atom and a second atom Q, wherein Q is selected from O, S, N and C, with (b) a silane having the structure of formula (I) wherein: R 1 , R 2 and R 3 are independently selected from the group consisting of hydrocarbyl, substituted hydrocarbyl, heteroatom-containing hydrocarbyl, and substituted heteroatom-containing hydrocarbyl and X is hydrogen, cyano, cyanato, azido, alkenyl, alkenyloxy, alkenylthio, or boronato, in the presence of (c) a catalytically effective amount of a transition metal oxo, sulfido or amido complex, wherein: (i) the transition metal of the complex is selected from Groups 6, 7, and 8 of the Periodic Table of the Elements; and (ii) the transition metal complex has the structure L m M(═Z) n wherein: m is an integer in the range of 2 to 5 inclusive; n is 1 or 2; the L groups are ligands, and may be the same or different; M is the transition metal; and Z is O, S or NR 1 wherein R 1 is hydrogen or hydrocarbyl, under reaction conditions that provide for nucleophilic addition of the silane to the electrophilic site of the electrophilic reactant.