Nickel‐catalyzed cross‐coupling reactions of chlorosilanes with organoaluminum reagents were developed. An electron‐rich Ni(0)/PCy3 complex was found to be an effective catalyst for the desired transformation. The reaction of dichlorosilanes 1 proceeded to give the corresponding monosubstituted products 2. Trichlorosilanes 4 underwent selective double substitution to furnish the corresponding monochlorosilanes
作者:Charles H. DePuy、Scott Gronert、Stephan E. Barlow、Veronica M. Bierbaum、Robert Damrauer
DOI:10.1021/ja00188a003
日期:1989.3
acidities of 15 simple alkanes have been determined in a flowing afterglow-selected ion flow tube (FA-SIFT) by a kinetic method in which alkyltrimethylsilanes were allowed to react with hydroxide ions to produce a mixture of trimethylsiloxide ions by loss of alkane and alkyldimethylsiloxide ions by loss of methane. The reaction is proposed to proceed by addition of hydroxide ion to the silane to form
Heterogenization of Rh(II) porphyrin catalysts in a metal–organic framework is crucial for catalyst turnover in thermal olefin hydrosilylation and hydrogermylation. Unlike MOF-supported metalloradical catalysts, homogeneous analogues convert to closed shell species that obstruct catalytic turnover. Site-isolated Rh(II) metalloradicals are readily accessed via MOF synthesis with a linker containing