The α-fluorovinyl diphenyl sulfonium salt 1 is attractive due to its high potential for the synthesis of mono-fluorinated cyclopropanes and aziridines as useful three-membered rings. The synthetically useful salt 1 is readily prepared from α-fluorovinyl phenyl sulfide and diphenyl iodonium salt in one step.

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The ring‐opening reaction of 2‐trifluoromethyl‐N‐tosylaziridine with a variety of heteroatom‐ and carbon‐centered nucleophiles is achieved under basic conditions in good to high yields with excellent regioselectivity.

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