P2O5–SiO2 as an efficient heterogeneous catalyst for the solvent-free synthesis of 1-substituted 1H-1,2,3,4-tetrazoles under conventional and ultrasound irradiation conditions
作者： Davood Habibi , Mahmoud Nasrollahzadeh , Leila Mehrabi , Samaneh Mostafaee
DOI: 10.1007/S00706-012-0871-9
关键词:
摘要: 1-Substituted 1H-1,2,3,4-tetrazoles were efficiently synthesized from the reaction of primary amines, triethyl orthoformate, and sodium azide in presence a catalytic amount P2O5–SiO2 under conventional ultrasound irradiation solvent-free conditions. The advantages this procedure are high yields, relatively short times, ease product isolation, low cost, recovery reusability catalyst. .
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