The reaction of 5-(2-arylethenyl)-2-methyl-2H-tetrazoles with arenes (benzene, xylenes, tert-butylbenzene, anisole, veratrole, 1,2-dichlorobenzene) under conditions of superelectrophilic activation under the action of Bronsted superacids (CF₃SO₃H, FSO₃H) or strong Lewis acids (AlCl₃, AlBr₃) leads regioselectively to the products of hydroarylation of the carbon-carbon double bond, viz., 5-(2,2-diarylethenyl)-2-methyl-2H-tetazoles, in yields of up to 95%.