METHOD FOR PRODUCING L-PHENYLEPHRINE HYDROCHLORIDE
摘要
The invention relates to an improved method for the industrial-scale production of L-phenylephrine hydrochloride 3 by asymmetric hydrogenation as key step and a special series of subsequent steps. According to the invention [Rh(COD)Cl]2 is used as catalyst and a chiral, bidentate phosphine ligand such as (2R, 4R)-4-(dicyclohexylphospino)-2-(diphenylphosphino-methyl)-N-methyl-aminocarbonyl-pyrrolidine is used as catalyst system.
申请公布号
WO0043345(A1)
申请公布日期
2000.07.27
申请号
WO2000EP00144
申请日期
2000.01.11
申请人
BOEHRINGER INGELHEIM PHARMA KG;KLINGLER, FRANZ, DIETRICH;WOLTER, LIENHARD;DIETRICH, WOLFGANG
发明人
KLINGLER, FRANZ, DIETRICH;WOLTER, LIENHARD;DIETRICH, WOLFGANG