Metal‐Free Synthesis of Unsymmetrical Aryl Selenides and Tellurides via Visible Light‐Driven Activation of Arylazo Sulfones
Junjie Liu, Miaomiao Tian, Yuxuan Li, Xiwen Shan, Ankun Li, Kui Lu, Maurizio Fagnoni, Stefano Protti, Xia Zhao
Abstract
A protocol for the visible light driven preparation of unsymmetrical (hetero)aryl selenides and tellurides is described herein. The method exploits the peculiar photoreactivity of arylazo sulfones that act as thermally stable, precursors of aryl radicals under both photocatalyst‐ and additive‐free conditions. The method developed shows an impressive versatility (more than fifty compounds isolated).
Topics & Concepts
ChemistryArylVisible spectrumRadicalPhotocatalysisCombinatorial chemistryMetalPhotochemistryOrganic chemistryCatalysisAlkylOptoelectronicsPhysicsSulfur-Based Synthesis TechniquesOrganoselenium and organotellurium chemistryRadical Photochemical Reactions