Effect of triarylphosphane ligands on the rhodium-catalyzed hydrosilylation of alkene
作者:Mei Xue、Jiayun Li、Jiajian Peng、Ying Bai、Guodong Zhang、Wenjun Xiao、Guoqiao Lai
DOI:10.1002/aoc.3092
日期:2014.2
functionalized triarylphosphane ligands are characterized by a very high catalytic effectiveness for the hydrosilylation of alkene. Among these catalysts tested, RhCl3/diphenyl(2‐(trimethylsilyl)phenyl)phosphane (8a) exhibited excellent catalytic properties. Using this silicon‐containing phosphane ligand for the rhodium‐catalyzed hydrosilylation of styrene, both higher conversion of alkene and higher β‐adduct
合成了一系列三芳基膦(1a,2a,3a,4a,5a,6a,7a,8a,9a,10a,11a)。(2-溴苯基)二苯基膦(1a)的X射线晶体结构分析明确证实了官能化膦的组成。RhCl 3催化苯乙烯与三乙氧基硅烷的硅氢化反应研究了三芳基膦。与经典的威尔金森氏催化剂相比,具有官能化三芳基膦配体的铑配合物的特征是对烯烃的氢化硅烷化具有很高的催化效率。在这些测试过的催化剂中,RhCl 3 /二苯基(2-(三甲基甲硅烷基)苯基)膦(8a)表现出优异的催化性能。使用这种含硅的膦配体进行铑的苯乙烯氢化硅烷化反应,与威尔金森催化剂相比,烯烃的转化率更高,β-加合物的选择性更高。版权所有©2014 John Wiley&Sons,Ltd.