Separation of stereoisomeric alcohol, useful in fine chemistry and pharmaceutical chemistry, comprises distillative separation of the alcohol in the presence of chiral discriminators containing metal complex with a ligand

摘要

Separation of stereoisomeric alcohol (A) comprises distillative separation in the presence of chiral discriminators containing metal complex with at least a ligand (I). Separation of stereoisomeric alcohol (A) comprises distillative separation in the presence of chiral discriminators containing metal complex with at least a ligand of formula (I). Either R1-R4alkyl (optionally substituted by 1-5 T), cycloalkyl, heterocycloalkyl or (het)aryl (all optionally substituted by 1-5 alkyl or T); or CR1R2, CR3R45-8-membered heterocycle optionally fused to 1-3 (hetero)cycloalkyl or (het)aryl rings (optionally substituted, including on fused rings, by 1-4 (cyclo)alkyl, heterocycloalkyl, (het)aryl, OH, SH, polyalkyleneoxide, polyalkylene imine, alkoxy, halo, COOH, carboxylate, SO3, sulfonate, NE4E5, NE4E5E6X-, NO2, alkoxycarbonyl, acyl or CN); X : completes 5-8 membered heterocycle (optionally interrupted by 1-2 optionally substituted heteroatoms) optionally fused to 1-2 (hetero)cycloalkyl or (het)aryl rings (optionally substituted, including on fused rings, by 1-4 (cyclo)alkyl, heterocycloalkyl, (het)aryl, OH, SH, polyalkylene oxide, polyalkylene imine, alkoxy, halo, COOH, carboxylate, SO3H, sulfonate, NE7E8, NE7E8E9X-, NO3, alkoxycarbonyl, acyl or CN); or E1-E9H, (cyclo)alkyl or aryl; X-an anion; and T : (hetero)cycloalkyl, (het)aryl, (cyclo)alkoxy, heterocycloalkoxy, (het)aryloxy, OH, SH, polyalkylene oxide, polyalkylene imine, COOH, carboxylate, SO3H, sulfonate, NE1E2, NE1E2E3X-, halo, NO2, acyl or CN. [Image].