作者:T.N. Mitchell、W. Reimann
DOI:10.1016/0022-328x(87)85003-9
日期:1987.3
Reactions of α-stannylvinyllithiums RR′CC(Li)SnMe3 with halides Me3MCl (M = Si, Ge, Pb) give the corresponding mixed bis(trimethylmetal)alkenes RR′CC(SnMe3)3. With two equivalents of methyllithium and trimethyllead chloride, RR′CC(SnMe3)2 can be converted to RR′CC(PbMe3)2. The latter, as well as RR′CC(SnMe3)PbMe3, undergoes transmetallation with methyllithium to give α-plumbylvinyllithiums RR′CC(Li)PbMe3
α-锡烷基乙烯基锂RR'CC(Li)SnMe 3与卤化物Me 3 MCl(M = Si,Ge,Pb)的反应生成相应的混合双(三甲基金属)烯烃RR'CC(SnMe 3)3。用两个当量的甲基锂和三甲基氯化铅,RR'CC(SnMe 3)2可以转化为RR'CC(PbMe 3)2。后者以及RR'CC(SnMe 3)PbMe 3与甲基锂发生金属转移反应,生成α-铅乙烯基乙烯基锂RR'CC(Li)PbMe 3相对于相应的α-更稳定且碱性更低。锡烷基阴离子。