Regioselective Diboration and Silaboration of Allenes Catalyzed by Au Nanoparticles
作者:Marios Kidonakis、Manolis Stratakis
DOI:10.1021/acscatal.7b04084
日期:2018.2.2
available supported Au nanoparticles on TiO2 (1 mol %), terminal allenes undergo diboration and silaboration exclusively on the terminal double bond, in high yields and stereoselectivity. In silaboration, the boron moiety (Bpin) is attached on the terminal carbon and the silyl group on the sp-C, a regioselectivity pattern that is unusual. No ligands or additives are required, while the catalyst is recyclable
The regio- and stereoselectivesynthesis of allylsilane derivatives bearing a tetrasubstituted olefin was achieved using 2,2-diborylethylsilane as a key intermediate. The regioselective deprotonati...