作者:L. I. Vereshchagin、A. V. Petrov、V. N. Kizhnyaev、F. A. Pokatilov、A. I. Smirnov
DOI:10.1134/s1070428006070219
日期:2006.7
Nonfused bis-1,3,4-oxadiazoles were synthesized by reaction of 5-substituted mono- and bis-tetrazoles with mono- and dicarboxylic acid chlorides. The results of kinetic studies showed that the transformation of tetrazoles into 1,3,4-oxadiazoles is accelerated by I to 2 orders of magnitude on addition of a catalytic amount of dimethylformamide, triethylamine, or pyridine.