Transition metal-free generation of the acceptor/acceptor-carbene via α-elimination: synthesis of fluoroacetyl cyclopropanes

Abstract

An efficient transition metal-free approach for the generation of acceptor/acceptor-carbene followed by trapping with alkenes to provide fluoroacetyl cyclopropanes has been described. The resulting cyclopropanes could be further converted into the fluoromethyl dihydrofurans or fluorodihydropyrroles through ring-expansion processes.