New synthesis of [1,3,4] thiadiazolo [2,3-c][1,2,4] triazinone; Transfer of active electron by microwaves

Reaction of various aromatic aldehydes with 4-amino-6-methyl-1,2,4-triazin-5-one supported on to montmorillonite-K10 in the presence of nitrobenzene under microwaves irradiation, afforded the corresponding [1,3,4] thiadiazole [2,3-c][1,2,4]-triazinones.