Heilmittelchemische Studien in der heterocyclischen Reihe. 10. Mitteilung. Pyridazine VII. Zur neuen Pyridazin‐Synthese. Methylpyridazine

Using methylglyoxal as the α-dicarbonyl component in the new pyridazine synthesis described in an earlier publication, two isomeric methyl-5-cyano-pyridazones-(6) are obtained with cyanoacetic acid hydrazide. The position of the methyl groups has been proved.