Novel Synthesis of 4-Bromo-3-oxo-2-phenylhydrazonobutyronitrile and 4-Cyano-3-oxo-2-phenylhydrazonobutyronitrile: Synthesis of Pyridazine, Thiazole, 1,2,4-Triazine and Pyrido[2,3-e]-1,2,4-triazine Derivatives
Novel Synthesis of 4-Bromo-3-oxo-2-phenylhydrazonobutyronitrile and 4-Cyano-3-oxo-2-phenylhydrazonobutyronitrile: Synthesis of Pyridazine, Thiazole, 1,2,4-Triazine and Pyrido[2,3-e]-1,2,4-triazine Derivatives