Switch in Stereoselectivity Caused by the Isocyanide Structure in the Rhodium-Catalyzed Silylimination of Alkynes
作者:Yoshiya Fukumoto、Motoyuki Hagihara、Fuyuko Kinashi、Naoto Chatani
DOI:10.1021/ja202881y
日期:2011.7.6
The reaction of terminal alkynes with hydrosilanes and tert-alkyl isocyanides in the presence of Rh-4(CO)(12) gives (Z)-beta-silyl-alpha,beta-unsaturated imines in good yields. On the other hand, the use of aryl isocyanides in place of tert-alkyl isocyanides leads to the formation of E isomers.