Copper-Catalyzed Radical Sulfonylative Cyclization of o-Vinylanilides with Sulfonyl Chlorides for the Synthesis of Sulfonylated 4H-Benzo[d][1,3]oxazines
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M Liao, QY Zhong, YS Meng, XN Zhu…
The Journal of …, 2026
ACS Publications
A copper-catalyzed sulfonylative cyclization of o-vinylanilides with sulfonyl chlorides has been developed, providing efficient access to sulfonylated 4H-benzo[d][1,3]oxazines under mild conditions. The transformation proceeds at room temperature and exhibits a broad substrate scope and functional-group compatibility, affording structurally diverse products in good to excellent yields. The method is amenable to the late-stage diversification of complex molecules. Preliminary mechanistic studies support a copper-mediated radical cyclization process.ACS Publications展开收起保存 引用 相关文章 所有 2 个版本
