Author(s): XUE Mei, LI Jiayun, PENG Jiajian, BAI Ying, CHEN Feng, XIAO Wenjun, LAI Guoqiao
Pages: 1-5
Year: 2014 Issue:  1
Journal: Journal of Hangzhou Normal University(Natural Sciences Edition)
Keyword:  triarylphosphine ligands; Karstedt catalyst; hydrosilylation;
Abstract: A series of triarylphosphine ligands containing different groups were prepared ,and the effects of these ligands on the Karstedt catalyst in hydrosilylation reaction were investigated .The results indicate that the triarylphosphine ligands containing amino , carboxyl or alkyl group inhibit the catalytic activity of Karstedt catalyst , and in contrary , the triarylphosphine ligands containing silicon-based functional group promote both the catalytic activity of Karstedt catalyst and the selectivity of βadducts .When the amount of catalyst is 0 .5 ‰ ,and the rate of ligands and Karstedt catalyst is 6∶1 ,the best catalytic effect is obtained .