Abstract w-Thiocyanatoacetophenones la, b react with hydrazine hydrate to yield bis [4-aryl- 5-hydro-δ3, 4-thiazol-2-ylidine] azines 2a, b. Compounds 1a, b react with phenyl hydrazine to yield 1-phenyl-6-phenylazo-3, 6-diaryl-l, 4, 5, 6-tetrahydropyridazines 5a, b respectively. The phenylhydrazone of la was obtained via indirect method.
