Highly enantioselective hydrosilylation of simple ketones catalyzed by rhodium complexes of P-chiral diphosphine ligands bearing tert-butylmethylphosphino groups
作者:Tsuneo Imamoto、Takuma Itoh、Yoshinori Yamanoi、Rintaro Narui、Kazuhiro Yoshida
DOI:10.1016/j.tetasy.2006.02.008
日期:2006.2
P-Chiral diphosphine ligands, (S,S)-1,2-bis(tert-butylmethylphosphino)ethane [(S,S)-t-Bu-BisP∗], (R,R)-bis(tert-butylmethylphosphino)methane [(R,R)-t-Bu-MiniPHOS], and (R,R)-2,3-bis(tert-butylmethylphosphino)quinoxaline [(R,R)-QuinoxP∗], were applied to the rhodium-catalyzed enantioselectivehydrosilylation of simple ketones. The corresponding secondary alcohols were obtained in high yields with good