CHIRAL DIPHOSPHORUS COMPOUND, METHOD FOR PRODUCING THE SAME, TRANSITION METAL COMPLEX CONTAINING THE SAME, STEREOISOMERICALLY ENRICHED COMPOUND AND METHOD FOR PRODUCING CATALYST CONTAINING TRANSITION METAL COMPLEX

摘要

PROBLEM TO BE SOLVED: To provide a ligand system capable of changing stereospecific characteristics and electronic characteristics easily and especially enabling not only a high enantio-selectivity but also a high conversion rate with the transition metal complex as a catalyst in an asymmetric hydrogenation. SOLUTION: This compound is expressed by formula (1). As a concrete example of the compound, 2, 3-bis-O-(diphenylphosphino)-1, 6-di-O-(t-butyldiphenylsilyl)-2, 5-anhydro-D-mannitol of the formula, etc., can be cited. COPYRIGHT: (C)2004,JPO