A Facile Entry for One-pot Synthesis of 5,7-Diaryl-4,4-dimethyl-4,5,6,7tetrahydropyridino[3,4-d]-1,2,3-selenadiazoles

A simple synthetic strategy is described for one-pot synthesis of 5,7-diaryl-4,4-dimethyl-4,5,6,7-tetrahydropyridino[3,4-d]-1,2,3-selenadiazoles (11-15) in the presence of NaHSO4. SiO2 as a heterogeneous catalyst in dry media under microwave irradiation