With chiral 2-methoxy-1-naphthylsulfinyl-based phenyl backbone sulfoxide-olefin ligands, a highly Rh-catalyzed addition of arylboronic acids to N,N-dimethylsulfamoyl-protected aldimines has been developed to afford a broad range of chiral diarylmethylamines in high yields (up to 99%) with excellent enantioselectivities (up to 99% ee). Moreover, efficient enantioselective arylation of cyclic N-sulfonylimines was also achieved with excellent enantioselectivities (up to 98% ee).
Key words
arylation - arylboronic acids -
N,
N-dimethylsulfamoyl-protected aldimines - sulfoxide-olefin ligands - asymmetric catalysis