Mo(CO)3(CNt-Bu)3 (MoBI3) was found to be a suitable catalyst for the regioselective hydrostannation of several types of alkynes, especially propargyl alcohol derivatives, affording preferentially the a-stannylated products. If propargylic acetates are used, the stannylated allylic acetates produced are suitable substrates for Pd-catalyzed allylic alkylations. Allenyl carbinols also undergo regioselec-
Mo(CO)3(CNt-Bu)3 (MoBI3) 被发现是一种合适的催化剂,可用于几种类型的
炔烃,尤其是炔
丙醇衍
生物的区域选择性氢化
锡化,优先提供α-甲
锡烷基化产物。如果使用炔
丙基乙酸酯,则产生的亚烷基化
烯丙基乙酸酯是用于 Pd 催化的烯丙基烷基化的合适底物。在存在 MoBI3 的情况下,
烯丙醇也会发生区域选择性氢化
锡化反应,因为
烯丙醇比
炔烃更具反应性,因此更温和的反应条件是可能的。烯丙基
锡烷优先形成,可以很容易地转化为烯丙基
碘化物或
乙烯基环氧化物。