Copper‐Catalyzed Photoinduced [3+3] Cycloaddition Reactions of α‐Acidic Isocyanides with Tetrazoles
Hua‐Wei Liu,
Yong‐Jiu Hao,
Zhong‐Jian Cai
et al.
Abstract:Herein, a copper‐catalyzed photoinduced [3+3] cycloaddition reaction of α‐acidic isocyanides with 2,5‐diaryltetrazoles is described. The reaction proceeded smoothly with high regioselectivity, affording a range of important 1,2,4‐triazines under mild conditions. The obtained 1,2,4‐triazines were converted into triazine alcohol, Weinreb amide and triazinone easily, which further illustrate the utility of this [3+3] cycloaddition process.
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