Synthesis of new heteroaromatic systems: Naphth[2,1-e] imidazo[5,1-c]-1,2,4-triazines and benz[e]imidazo-[5,1-c]-1,2,4-triazines

被引：0

作者：

Bezmaternykh M.A. ^{[1
]}

Mokrushin V.S. ^{[1
]}

Sadchikova E.V. ^{[1
]}

机构：

[1] Ural State Technical University

来源：

Chemistry of Heterocyclic Compounds | 2000年 / 36卷 / 04期

关键词：

Azo coupling; Benzimidazotriazine; Cyclization; Diazoimidazole; Imidazotriazine; Naphthimidazotriazine; p-toluenesulfonic acid; Phenols;

D O I：

10.1007/BF02269547

中图分类号：

学科分类号：

摘要：

Cyclization of azo compounds, synthesized 5-diazoimidazoles and 2-naphthol or p-substituted phenols, into naphth[2,1-e]imidazo[5,1-c]-1,2,4-triazines and benz[e]imidazo[5,1-c]-1,2,4-triazines occurs only in the presence of p-toluenesulfonic acid. Imidazo[4,5-d]-1,2,3-triazines are also formed in this reaction when an amide substituent is present in the imidazole ring.

引用

页码：465 / 471

页数：6

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