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[4 + 3] Cycloaddition of Phthalazinium Dicyanomethanides with Azoalkenes Formed in Situ: Synthesis of Triazepine Derivatives

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journal contribution
posted on 2016-09-02, 00:00 authored by Wenjun Yang, Chunhao Yuan, Yang Liu, Biming Mao, Zhanhu Sun, Hongchao Guo
[4 + 3] cycloaddition of phthalazinium dicyanomethanides with in situ formed azoalkenes was achieved, providing an access to various 1,2,4-triazepine derivatives in moderate to excellent yields.