Different acid anhydrides (of C2 to C7 aliphatic fatty acids and benzoic acid) have been used to study the selective acylation of primary/secondary hydroxyl groups in 2-phenyl-4-(d- threo-1′, 2′, 3′-trihydroxypropyl)-2H-1, 2, 3-triazole, 2-phenyl-4-(d-erythro-1′, 2′, 3′- trihydroxypropyl)-2H-1, 2, 3-triazole, 2-phenyl-4-(d-arabino-1′, 2′, 3′, 4′- tetrahydroxybutyl)-2H-1, 2, 3-triazole and 2-phenyl-4-(d-lyxo-1′, 2′, 3′, 4′- ...