Blue Light-promoted Carbene Transfer Reactions of Tosylhydrazones

Abstract

Metal-free photochemical carbene-transfer reactions of tosylhydrazones were developed under blue light irradiation at room temperature. This reaction constructs C-X (X=C, N, O, S) bonds and cyclopropanes from readily available and stable starting materials.

Keywords: Carbene; Cyclopropanation; Photochemistry; Tosylhydrazones; X−H insertions.