A facile synthesis of 1-substituted-1H-1,2,3,4-tetrazoles catalyzed by ytterbium triflate hydrate

A series of 1-substituted 1H-1,2,3,4-tetrazole compounds have been synthesized in good yields from amines, triethyl orthoformate, and sodium azide through the catalyzed reaction with Yb(OTf)(3). Some of the 1-susbstituted 1H-1,2,3,4-tetrazole compounds showed strong phytocidal activity.