Preparation of substituted 2-methyl-1,3,4-oxadiazoles from 5-substituted tetrazoles and acetic anhydride

B. S. Jursic, Z. Zdravkovski, Preparation of substituted 2-methyl-1,3,4-oxadiazoles from 5-substituted tetrazoles and acetic anhydride, Synthetic Communications, 24, 1575–1582 (1994).