Compounds IVa, e, h, i were cyclized with the elimination of hydrogen sulfide on heating in an oil bath at 5-10 OC over their melting points yielding 2, 3dihydro-6-phenyCs-triazoio [3, 4- b 1-[1, 3, 4] aadiazde (VI)(see Chart 11). Compounds VI reacted with methyl iodide, forming compounds VIIa-c. Compounds III reacted also with hydroxylamine hydrochloride, urea, and thiourea, yielding 2-aryi-4-(aminomethylF
