Upon treatment with base n-halo N-(p-tolylsulfony1) sulfoximines bearing a hydrogens undergo 1, 3 eliminations to yield alkenes in analogy to the Ramberg-Backlund reaction of a- halo sulfones. Treatment of benzylic ru-bromo Ai-(p-tolylsulfony1) sulfoximines with refluxing methanolic potassium hydroxide gave cis-alkenes as the major product, whereas under the same conditions a-chloro dialkylsulfoximines gave largely trans-alkenes. Neither NH nor ...
