Chloro(η6-p-cymene)(phosphoramidite)ruthenium(II), a 16-Electron Fragment Stabilized by anη2-Aryl–Metal Interaction, and Its Use in Asymmetric Cyclopropanation
作者:Dominik Huber、P. G. Anil Kumar、Paul S. Pregosin、Igor S. Mikhel、Antonio Mezzetti
DOI:10.1002/hlca.200690168
日期:2006.8
2-η)-phenyl]ethyl}[(1R)-1-phenylethyl]phosphoramidite-κP}ruthenium(II) hexafluorophosphate (3a) and [Ru(S)]-dichloro(η6-p-cymene)(1Sa)-[1,1′-binaphthalene]-2,2′-diyl (1R)-1-[(1,2-η)-naphthalen-1-yl]ethyl}[(1R)-1-(naphthalen-1-yl)ethyl]phosphoramidite-κP)ruthenium(II) hexafluorophosphate (3b), which feature the η2-coordination of one aryl substituent of the phosphoramidite ligand, as indicated by 1H-, 13C-, and 31P-NMR
从半夹心络合物氯化物抽象将[RuCl 2(η 6 - p -cymene)(P * - κP)](2A:P * =(s ^一个,R,R) - 1A =(1 š一) - [ 1,1'-联萘] -2,2'-二基双[((1R)-1-苯乙基)]亚磷酰胺; 2b:P * =(S a,R,R)-1b =(1 S a)-[1,1′-联萘] -2,2′-二基双[(1 R)-(1-(1- (Et 3 O)[PF 6 ]或Tl [PF 6]给出阳离子,18-电子络合物二氯(η 6 - p -cymene)(1 š一) - [1,1'-联萘] -2,2'-二基(1 - [R)-1 - [( 1,2- η) -苯基]乙基} [(1 - [R)-1-苯乙基] phosphoramidite- κP }钌(II)六氟磷酸盐(图3a)和[茹(小号)] -二氯(η 6 - p -cymene) (1 S a)-[1