A process for the preparation of an enantioenriched sulfone of formula (1), which comprises asymmetric hydrogenation of vinyl sulfone of formula (2)
wherein R1 and R2 are each independently a hydrocarbon group of less than 20 carbons atoms, optionally substituted at any position, or either of R1 and R3 is H, and X is a coordinating group, in the presence of a stereoselective chiral catalyst.
制备式(1)的对映富集磺酮的过程,包括在手性选择性催化剂存在下,对式(2)的
乙烯基磺酮进行不对称氢化,其中R1和R2各自独立地是少于20个碳原子的烃基,可在任何位置取代,或者R1和R3中的任意一个是氢,X是一个配位基团。