The process for preparing the enantiu00f4mero s or R of a compound, using a chiral catalyst, Ru (chiral ligand) (ACAC) 2, Ru (chiral ligand) (CF3COO) 2, catalytic system and Rh (norbornadieno) 2 PF6 (DIPH MEO - biphep)

摘要

A process for preparing the S or R enantiomer of a compound of formula A, (see formula (B) and formula (A)), the process comprising subjecting a compound of formula B to asymmetric hydrogenation in the presence of a chiral transition metal catalyst and a source of hydrogen.