Bifunctional Triflylamide-Tethered Cp′Rh and Cp′Ir Complexes: A New Entry for Asymmetric Hydrogenation Catalysts
作者:Masato Ito、Yoshinori Endo、Noriko Tejima、Takao Ikariya
DOI:10.1021/om1001809
日期:2010.6.14
A series of triflylamide-tethered Cp′Rh and Cp′Ir complexes, [η5:η1-(CH3)4C5(CH2)nNTf]M (M = Rh, Ir, n = 2−4), have been newly prepared and their three-legged piano-stool structure has been characterized. The tethered complexes having the (R,R)-MsDPEN ligand have been found to promote asymmetric hydrogenation of acetophenone, which indicates that the introduction of a suitable triflylamide tether unit
一系列triflylamide拴Cp'Rh和Cp'Ir络合物,[η 5:η 1 - (CH 3)4 Ç 5(CH 2)Ñ NTF] M(M =铑,铱,Ñ = 2-4) ,是新近准备的,并且已经对它们的三脚钢琴凳结构进行了表征。已经发现具有(R,R)-MsDPEN配体的束缚复合物促进苯乙酮的不对称氢化,这表明引入合适的三氟乙酰胺束缚单元改变了它们从转移氢化到氢化的催化功能。