Abstractmagnified imageSequential and one‐pot Stille–Heck and Heck–Stille reaction processes have been invoked to give divergent access to polycyclic ring systems. Both reaction conditions and substrate structure are important in determining the nature of the reaction products formed. The Heck–Stille reactions have involved a reversal of the usual Heck regioselectivity and both cine‐ and ipso‐substitutions have been observed in the Stille reaction.
DOI:
10.1002/adsc.200800678
作为产物:
描述:
盐酸 、 4-溴-1-丁烯 、 (Me3Sn)2Cu*LiCN 、 氨 、 间苯二甲醚 在
Na 、 (CH3)3CLi 、 (C2H5)3N 作用下,
以
not given 为溶剂,
以83%的产率得到2-(but-3-enyl)-3-trimethylstannyl-cyclohex-2-enone
参考文献:
名称:
An efficient synthesis of (±)-frondosin B using a Stille–Heck reaction sequence
摘要:
基于 2-氯-5-甲氧基苯并[b]呋喃-3-基三氯酸盐和 2-(3-丁烯基)-3-(三甲基锡基)环己-2-烯酮的 StilleâHeck 反应序列,我们开发出了一种简便的 (±)-frondosin B 趋同合成方法,并以 34% 的总收率得到了外消旋天然产物。