Ruthenium-catalyzed reduction of racemic tricarbonyl(η6-aryl ketone)chromium complexes using transfer hydrogenation: A simple alternative to the resolution of planar chiral organometallics
作者:Cleber V. Ursini、Gilson H.M. Dias、J. Augusto R. Rodrigues
DOI:10.1016/j.jorganchem.2005.03.048
日期:2005.7
resulted in optically active syn-(R,S)-(η6-aryl alcohol)Cr(CO)3 and (R)-(η6-aryl ketone)Cr(CO)3 compounds in 31–97% ee. Reduction of racemic (η6-thiochroman-4-one)Cr(CO)3 with the catalyst precursor generated from (+)-norephedrine, instead of (−)-ephedrine, inverted the configuration of the products obtained. Syn-(S,R)-(η6-thiochroman-4-ol)Cr(CO)3 and (S)-(η6-thiochroman-4-one)-Cr(CO)3 were isolated