Intermolecular hydrophosphination of alkynes and related carboncarbon multiple bonds catalyzed by ytterbium–imine complexes
作者:Ken Takaki、Mitsuhiro Takeda、Go Koshoji、Tetsuya Shishido、Katsuomi Takehira
DOI:10.1016/s0040-4039(01)01280-1
日期:2001.9
Catalytic intermolecular hydrophosphination of alkynes with Ph,PH has been achieved by using a ytterbium-imine complex, [Yb(eta (2)-Ph(2)CNPh)(hmpa)(6)]. Thus, both terminal and internal alkynes were converted in high yields to the corresponding alkenylphosphines or phosphine oxides after oxidative workup. The present method was also applicable to various carbon-carbon multiple bonds such as conjugated diynes and dienes, allenes and styrene derivatives. (C) 2001 Elsevier Science Ltd. All rights reserved.