with LiHMDS, followed by successive addition of chlorotrimethylsilane and carbonyl reagent, afforded dienylsilanes in good yields. 3-Substituted dienylsilanes were obtained by alkylation and olefination of allylic carbanion of 3-trimethylsilylallylphosphonates.
用Li
HMDS处理
烯丙基膦酸酯,然后连续加入
氯代三甲基
硅烷和羰基试剂,以高收率得到二烯基
硅烷。通过3-三甲基甲
硅烷基
烯丙基膦酸酯的烯丙基碳负离子的烷基化和烯化获得3-取代的二烯基
硅烷。