期刊
ORGANIC LETTERS
卷 21, 期 17, 页码 6710-6714出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b02315
关键词
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资金
- National Natural Science Foundation of China [21472140, 21372177]
- Wenzhou Science & Technology Bureau Program [G20170021]
- Xinmiao Talent Planning Foundation of Zhejiang Province [2018R429058]
Presented in this work is a novel methodology for the synthesis of selenated benzofurans (or benzothiophenes) via AgNO2-catalyzed radical cyclization of 2-alkynylanisoles (or 2-alkynylthioanisoles), Se powder, and arylboronic acids. This method enables the construction of a benzofuran (benzothiophene) ring, two C-Se bonds, and a C-O(S) bond as well as the cleavage of a C-O(S) bond in a single step. Preliminary mechanistic studies imply that the AgNO2-catalyzed cyclization proceeds via an aryl selenium radical intermediate.
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