Reaction of trifluoromethyl-containing enones with thiophenol derivatives

The reaction of trifluoromethyl-containing enones with thiophenol derivatives has been studied. Reactions with 4-methylthiophenol proceed with the formation of either ketosulfides or a pyran derivative. Reactions of trifluoromethyl-containing enones with 2-mercaptobenzaldehyde lead to 3-trifluoroacetyl-substituted 2H-thiochromenes. M. V. Lomonosov Moscow State University, Moscow 119899, Russia N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 117907, Russia. Department of Chemistry, University of Durham, South Road, Durham, Great Britain, DH1 3LE. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 618–626, May, 1999.