Organocatalytic Enantioselective Decarboxylative Michael Addition of β‐Keto Acids to Dicyanoolefins and Disulfonylolefins

A convenient organocatalytic enantioselective decarboxylative Michael addition of β‐keto acids to dicyanoolefins and disulfonylolefins is realized. In the presence of saccharide‐derived chiral amino thioureas, the reaction proceeded smoothly to afford a wide range of the Michael adducts in 62–99% yield with 70–94% ee. Moreover, one of the chiral adducts obtained could be readily converted into the monofluorinated product in a total 68% yield over four steps with 85% ee.