Chiral Sulfur Compounds. XX. Solid-State Structures and Conformations of (E) Vinyl Sulfoximines

Abstract

The X-ray structural analysis of (E)-S-phenyl-S-(2-phenylethenyl)-N-(p- tolylsulfonyl ) sulfoximine and (E)-N-methyl-S-phenyl-S-(2-phenylethenyl) sulfoximine shows that the s- cis conformation, in which the C=C and S=O bonds are approximately syn coplanar, is favoured in the solid state.