Novel chiral water soluble phosphines I. Preparation and characterization of amine functionalized DIOP, Chiraphos, and BDPP derivatives and quaternization of their rhodium complexes

Article abstract of DOI:10.1016/S0957-4166(00)82281-8

Synthetic details for the preparation of tetra-amine functionalized derivatives of the ligands BDPP, Chiraphos, and DIOP (2,4-bis(-bis(-p-N,N-dimethylaminophenyl)phopshino)pentane; 2,3-bis(-bis(-p-N,N-dimethylaminophenyl)-phosphino)butane; and 2,3-O-isopr