Microwave-assisted synthesis and transformations of sterically hindered 3-(5-tetrazolyl)pyridines
Keywords: 1،3،4-Oxadiazoles; Nicotinic acid; Nicotinonitriles; Tetrazolyl derivatives; 1,3,4-Oxadiazoles; Intramolecular cycloaddition; Fused tetrazoles; Microwave irradiation;