organostannanes with aryl halides. The mechanistic studies show that the reaction of an alkynylstannane proceeds through an unprecedented catalytic cycle which involves an oxidative addition of the organostannane to the Pd(0)–iminophosphine complex. The catalyst was demonstrated to be also useful for the carbostannylation of alkynes and the homocoupling reaction of organostannanes.
发现由亚
氨基
膦配体配位的
钯配合物是
有机锡与芳基卤化物偶联的显着活性催化剂。机理研究表明,炔基
锡烷的反应是通过前所未有的催化循环进行的,该循环涉及将
有机锡烷氧化加成到Pd(0)-亚
氨基膦配合物中。已证明该催化剂也可用于
炔烃的羰基合成和
有机锡的均偶联反应。