Synlett 2025; 36(07): 835-840
DOI: 10.1055/a-2420-2617
letter

Synthesis of Diaryl Diselenides and Ditellurides via Bromide-Catalyzed C–Se/C–Te Bond Formation Using Se/Te Powder and Boronic Acid

Wangzhen Shen
b   College of Mechanical Engineering, University of South China, Hengyang 421001, Hunan, P. R. of China
,
Kaili Cen
a   College of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, Hunan, P. R. of China
,
Zhouting Zeng
a   College of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, Hunan, P. R. of China
,
Jinhui Cai
a   College of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, Hunan, P. R. of China
› Author Affiliations
We thank the National Natural Science Foundation of China (No. 22301128) and the Natural Science Foundation of Hunan Province (No. 2022JJ40353) for financial support.


Abstract

Diaryl diselenides and diaryl ditellurides are commonly employed as selenyl or telluryl sources, and they have a wide range of applications in organic synthesis. Herein, various diaryl diselenides/ditellurides are furnished in moderate to excellent yields under metal-free conditions. This method features high efficiency, good functional group tolerance, straightforward operation, and easy scale-up (running in 4 mmol-scale for most cases). Mechanistic studies indicate that this reaction may proceed via a radical pathway. Significantly, the correct matching of Br and dimethyl sulfoxide under an air atmosphere is critical to this transformation.

Supporting Information



Publication History

Received: 26 July 2024

Accepted after revision: 23 September 2024

Accepted Manuscript online:
23 September 2024

Article published online:
09 October 2024

© 2024. Thieme. All rights reserved

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany