Pyridazine derivatives and related compounds part 10.~1 Reactions of 3-diazopyrazolo[3,4-c]pyridazine with reactive methylene compounds and other groups

摘要

3-Diazopyrazolo[3,4-c]pyridazine was synthesized and its transformations were investgated.With reactive methylene compounds the corresponding hydrazones and condensed 1,2,4-triazines were fromed.With aromatic amiens and naphthols the diazo compound was convertedinto arylazo derivatives.The diazo compound underwent cycloaddition,reacting as a 1,4-dipole to yield cyclo-addition products.