(1S)-1-[Bis(3,5-dimethylphenyl)phosphino]-2-[(1R)-1-[bis(3,5-dimethylphenyl)phosphino]ethyl]ferrocene
(1S)-1-[Bis(3,5-dimethylphenyl)phosphino]-2-[(1R)-1-[bis(3,5-dimethylphenyl)phosphino]ethyl]ferrocene 1g : Chiral ferrocene bisphosphine for enantioselective hydrogenation and asymmetric synthesis. 3,5-dimethylphenyl groups provide steric control for high selectivity. SEO: chiral phosphine, ferrocene ligand, asymmetric catalysis.