Organocatalytic Synthesis of Sulfoximidoyl-Containing Carbamates from Sulfoximines and Morita-Baylis-Hillman Carbonates.

An unexpected substitution reaction providing sulfoximidoyl-containing carbamates was observed when Morita-Baylis-Hillman carbonates and NH-sulfoximines were mixed in acetonitrile at elevated temperature. Key ingredients were triethylamine and ortho-hydroxybenzoic acid, which both had to be present in catalytic quantities.