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Abstract
Bromomethyl and chloromethyl (E)-β-styryl sulfones enter a Michael ring closure reaction with sodium enolates prepared from dimethyl malonate, malononitrile and ethyl acetoacetate. The condensation results in formation of substituted tetrahydrothiophene-S,S-dioxides. It is a new instance of α-haloalkyl sulfones transformations, which are not connected with Ramberg–Bäcklund reaction.
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