Rh-catalyzed asymmetric hydrogenation of allylic sulfones for synthesis of chiral β-ester sulfones

The highly enantioselective hydrogenation of allylic sulfones catalyzed by Rh-( R , R )-f-spiroPhos for synthesis of chiral β-ester sulfones has been developed for the first time achieving high yields and excellent enantioselectivities (92–99.9% ee).