Method of production of enantiomer pure 3-hydroxy octanedioic acid esters by asymmetric catalytic hydration

摘要

Preparation of 3-hydroxyoctanedicarboxylic acid diesters of formula (S)-1 and (R)-1 comprises asymmetric hydrogenation of ketones (III): R1, R2 = 1-20C alkyl, 3-12C cycloalkyl, 7-12C aralkyl or a mono- or bicyclic aryl group. The hydrogenation takes place in the presence of a ruthenium-diphosphine complex.