substituted by both Bu3Sn and Cp2ZrCI groups on the terminal sp2-1ike carbon. These stereodefined reagents can be selectively transmetalated at zirconium to afford cuprates which deliver product vinyl stannanes in both substitution and Michael addition reactions.
摘要用Cp2Zr(H)Cl处理1-三
丁基锡烷基
炔烃可得到sp2-1ike末端碳原子上的Bu3Sn和Cp2ZrCI取代的烯烃中间体。这些立体确定的试剂可以在
锆上选择性地
金属转移以提供
铜酸盐,其在取代和迈克尔加成反应中均递送产物
乙烯基锡烷。