The syntheses of alpha- and beta-trifluoromethyl epoxysulfones 1 and 2 are described. Compound 1 reacts with nucleophiles and bis-nucleophiles to furnish trifluoromethyl ketones and triRuoromethyl heterocycles in good yield, while its isomer 2 leads to the opposite thiazole regioisomers with thioamides.
Laduron, F., Janousek, Z., & Viehe, HG. (1995). Alpha- Or Beta-trifiuoromethyl Epoxysulfones - New C-3 Reagents for Heterocyclization. Journal of Fluorine Chemistry, 73(1), 83-86. https://doi.org/10.1016/0022-1139(94)03212-I (Original work published 1995)