| abstract |
PURPOSE: To obtain the titled complex useful as a catalyst for asymmetric hydrogenation reaction, etc. industrially advantageously, by reacting an olefin complex of Rh with a trivalent phosphorus compound, reacting the resultant product with a salt using a quaternary ammonium salt, etc. as a phase transfer catalyst and water and methylene chloride as a solvent. n CONSTITUTION: An olefin complex of Rh shown by the formula I (olefin is ethylene, 1,3-butadiene, norbornadiene, etc.; n is 2 when olefin is monoolefin and n is 2 when olefin is diolefin) is reacted with a trivalent phosphorus compound to give a monovalent complex of Rh shown by the formula II[L is trivalent phosphorus compound shown by the formula III (Y is alkylene, group shown by the formula IV, formula V, etc.; R is lower alkyl, aryl, etc.)], which is reacted with a salt shown by the formula MX (M is Na, K, etc.; X is ClO 4 , BF 4 , PF 6 , etc.) using water and methylene chloride as a solvent and a quaternary ammonium or quaternary phosphonium salt shown by the formula VI (R 1 WR 4 are 1W 16C alkyl, phenyl, etc.; Q is N, or P; Z is halogen) as a phase transfer catalyst, to give a compound shown by the formula VII. n COPYRIGHT: (C)1984,JPO&Japio |