Diastereoselective Synthesis of Seven-Membered-Ring <i>trans</i>-Alkenes from Dienes and Aldehydes by Silylene Transfer
作者:Margaret A. Greene、Michel Prévost、Joshua Tolopilo、K. A. Woerpel
DOI:10.1021/ja305713v
日期:2012.8.1
Silver-catalyzed silylene transfer to alkenes forms vinylsilacyclopropanes regioselectively. These allylic silanes undergo additions to aldehydes to form seven-membered-ring trans-alkenes with high diastereoselectivity. The highreactivity of the trans-alkenes is evidenced by their formal [1,3]-sigmatropic rearrangement reactions and the rapid additions of oxygen-hydrogen bonds across the carbon-carbon