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Rh(II)-Catalyzed Transannulation of N-Sulfonyl-1,2,3-Triazoles with 2,1-Benzisoxazoles or 1,2-Benzisoxazoles

Xiaoqiang Lei, Mohan Gao and Yefeng Tang*

*College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061; Chinese Academy of Sciences, Shanghai 201203, China, Email: yefengtangtsinghua.edu.cn

X. Lei, M. Gao, Y. Tang, Org. Lett., 2016, 18, 4990-4993.

DOI: 10.1021/acs.orglett.6b02454 (free Supporting Information)


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Abstract

A Rh(II)-catalyzed transannulation of N-sulfonyl-1,2,3-triazoles with 2,1-benzisoxazoles provides quinazoline derivatives. Meanwhile, a Rh(II)-catalyzed formal [3 + 2] cycloaddition of N-sulfonyl-1,2,3-triazoles with 1,2-benzisoxazoles enables a rapid synthesis of functionalized imidazole derivatives.


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Key Words

quinazolines


ID: J54-Y2016