Metal‐Free Synthesis of Unsymmetrical Aryl Selenides and Tellurides via Visible Light‐Driven Activation of Arylazo Sulfones. Issue 47 (17th November 2020)

• Record Type: Journal Article
• Authors: Liu, Junjie; Tian, Miaomiao; Li, Yuxuan; Shan, Xiwen; Li, Ankun; Lu, Kui; Fagnoni, Maurizio; Protti, Stefano; Zhao, Xia
• Is Part Of: European journal of organic chemistry. Issue 47(2020)
• Page Start: 7358
• Page End: 7367
• Publication Date: 2020-11-17
• Subjects: Aryl radicals -- Dyedauxiliary groups -- Chalcogens -- Arylazo sulfones -- Metal‐free synthetic protocols; Chemistry, Organic -- Periodicals; Organic compounds -- Synthesis -- Periodicals; Bioorganic chemistry -- Periodicals; Chemistry, Physical organic -- Periodicals; 547
• DOI: 10.1002/ejoc.202001386
• Languages: English
• ISSNs: 1434-193X

Abstract

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). Abstract : Unsymmetrical (hetero)aryl selenides and tellurides have been prepared in satisfactory yields from arylazo sulfones under visible light driven, photocatalyst‐ and metal‐free conditions.