Radical Addition/Cyclization Reaction of 2-Vinylanilines with Alkynes: Synthesis of Naphthalenes via Electron Catalysis

Chem Asian J. 2018 Dec 18;13(24):3855-3858. doi: 10.1002/asia.201801496. Epub 2018 Nov 21.

Abstract

A cascade radical addition/cyclization reaction of 2-vinylanilines with alkynes for the synthesis of biologically important naphthalene derivatives is reported. In this transformation, the in-situ-formed diazonium salts from 2-vinylanilines served as efficient aryl radical precursors and the reaction was run under metal-free conditions.

Keywords: diazonium salts; electron catalysis; metal free; naphthalene compounds; radical cyclization.