stereoselectivities. The intermediary alkenylmanganese compounds were trapped by various electrophiles. The reaction was clearly oxygen-assisted since 6-dodecyne was completely recovered unchanged. Diallylation products were obtained in the presence of air. Allylmagnesation and diallylation of these acetylenic compounds catalyzed by manganese salts are also disclosed.
用四烯丙基
锰酸酯或
三烯丙基
锰酸酯处理高炔
丙醇及其衍
生物或炔
丙醇,可以提供高产率,高区域选择性和立体选择性的单烯丙基化产物。中间链烯基
锰化合物被各种亲电试剂捕获。由于6-十二碳烯完全不变地回收,因此该反应显然是氧辅助的。在空气存在下获得
二烯丙基化产物。还公开了由
锰盐催化的这些炔属化合物的烯丙基
镁化和
二烯丙基化。