Synthesis of arylaminotetrazoles by ZnCl2/AlCl3/silica as an efficient heterogeneous catalyst

被引：57

作者：

Habibi, Davood ^{[1
]}

Nasrollahzadeh, Mahmoud ^{[1
]}

机构：

[1] Bu Ali Sina Univ, Fac Chem, Hamadan 6517838683, Iran

来源：

MONATSHEFTE FUR CHEMIE | 2012年 / 143卷 / 06期

关键词：

Arylaminotetrazole; Electron-releasing substituent; Electron-withdrawing substituent; Secondary arylcyanamide; Heterogeneous catalyst; 5-AMINOTETRAZOLES; CHEMISTRY; ACID;

D O I：

10.1007/s00706-011-0670-8

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Arylaminotetrazoles were efficiently synthesized from secondary arylcyanamides by application of ZnCl2/AlCl3/silica as a reusable heterogeneous Lewis acid catalyst. 5-Arylamino-1-tetrazoles can be obtained from arylcyanamides carrying electron-withdrawing substituents on the aryl ring, while with electron-releasing groups 1-aryl-5-amino-1-tetrazoles will be produced. The former isomer is also produced within longer reaction times (similar to 20 h) even with electron-releasing groups.

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收藏

页码：925 / 930

页数：6

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