Catalytic asymmetric arylation of N-alkylidenesulfonamides 1a–d, which are prepared from α, β-unsaturated aldehydes and 4-nitrobenzenesulfonamide, with aryltrimethylstannanes 2m– p proceeded in the presence of 3mol% of a rhodium catalyst coordinated with (R)-MOP ligand in dioxane at 110° C to give sulfonamide of allylic amines (R)-3 with high enantioselectivity (up to 96% ee) in high yields. Some of the allylic amines were converted ...
