(1) Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899 Moscow, Russian Federation
Abstract:
The reactions of vinyl sulfides with -sulfonylvinyl trifluoromethyl ketones afforded CF3-containing 3,4-dihydro-2H-pyrans. An attempt to synthesize 1,1,1-trifluoro-3-(methylthio)but-3-en-2-one resulted in its dimerization into a CF3-containing 3,4-dihydro-2H-pyran.