Institution: | Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University, Kyoto 606 Japan Takatsuki Research Laboratory, Sumitomo Chemical Co., Ltd., 2-10-1 Tsukahara, Takatsuki, Osaka 569 Japan |
Abstract: | A new chiral ferrocenylphosphine ligand, 2,2′-bis1-N,N-dimethylamino)ethyl]-1,1′-bis(diphenylphosphino)ferrocene (2), which has C2 symmetry and a functional group on the side chain, was prepared by ortho-lithiation and phosphination of 1,1′-bis1-N,N-dimethylamino)ethyl]ferrocene followed by optical resolution; recrystallization of the diammonium salt with tartaric acid. An X-ray diffraction study of PdCl2(+)-2] showed that the complex has square-planar geometry with two cis chlorine and two phosphorus atoms and ligand (+)-2 has an (S) configuration on the 1-dimethylaminoethyl side chain and (R) ferrocene planar chirality. |