Asymmetric Catalytic Hydroamination of Activated Olefins in Ionic Liquids
作者:Luca Fadini、Antonio Togni
DOI:10.1002/hlca.200790048
日期:2007.2
The addition of a series of both aliphatic and aromatic amines to electron-poor olefins was investigated using [Ni(Pigiphos)(THF)]2+ as catalyst (with different counterions) in various ionicliquids based on imidazolium- and picolinium-salt derivatives. The catalysts gave rise to selectivities comparable to those obtained when the reaction was conducted in neat organic solvents (ee up to 66%), but