[MoO<sub>2</sub>Cl<sub>2</sub>] as catalyst for hydrosilylation of aldehydes and ketones
作者:Ana C. Fernandes、Ricardo Fernandes、Carlos C. Romão、Beatriz Royo
DOI:10.1039/b414145h
日期:——
The high valent molybdenum-dioxo complex [MoO2Cl2] catalyzes the addition of dimethylphenylsilane to aldehydes and ketones to afford the corresponding dimethylphenylsilyl ethers in quantitative yield.
Analysis of an Unprecedented Mechanism for the Catalytic Hydrosilylation of Carbonyl Compounds
作者:Kristine A. Nolin、Jennifer R. Krumper、Michael D. Pluth、Robert G. Bergman、F. Dean Toste
DOI:10.1021/ja074477n
日期:2007.11.28
catalyzed by (PPh3)2Re(O)2I. The proposed mechanism involves addition of a silane Si-H bond across one of the rhenium-oxo bonds to form siloxyrhenium hydride intermediate 2 that reacts with a carbonyl substrate to generate siloxyrhenium alkoxide 4, which, in turn, affords the silyl ether product. Compelling evidence for the operation of this pathway includes the following: (a) isolation and structural characterization