American Chemical Society
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Multisite-Sequential Cyclization To Construct 1,2,4-Triazole-Based N‑Fused Heterocyclics

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journal contribution
posted on 2023-02-28, 13:05 authored by Lang Liu, Changting Wen, Guojin Sun, Yao Li, Jun Zhang, Zhe Zhang, Zesi Wang, Mengyao She, Ping Liu, Shengyong Zhang, Jianli Li
A feasible protocol that uses atomic groups (KSCN, KSeCN, and NH2CN), o-bromobenzoyl hydrazides, and formyls as reaction factors to synthesize N-fused 1,2,4-triazole with benzothiazides, benzoselenazinones, and quinazolinones was proposed. The method overcomes the lengthy multistep synthesis, narrow substrate scope, and toxicity challenge induced by the use or production of hazardous substances. It also enables the development of fused-heterocyclic selenium and quinazolinone derivatives. Their fluorescent performance further demonstrates the practicability of this methodology.