SYNTHETIC STUDIES WITH 4,5,6-TRIPHENYL-3(2H)-PYRIDAZIONE

4,5,6-Triphenyl-3(2H)-pyridazinone reacted with ethyl chloroacetate, prhosphoryl chloride, hydrazin hydrate, primary amines, alkyl halide under Grignard conditions and ethyl bromoacetate under Reformatsky conditions and yielded 3-ethoxycarbonylmethoxy, chloropyridazine derivatives, Schiff-bases, and acetate derivative respectively. Structural assignments were based on analytical and spectral data.