82754-66-3

Upstream product

• 82754-63-0 diethyl 3-amino-2-cyano-4-phenylhydrazono-2-pentene-1,5-dicarboxylate 
• 89779-30-6 diethyl 3-amino-2-cyano-2-pentene-1,5-dicarboxylate 
• 100-34-5 benzene diazonium chloride 
• 82754-64-1 4-Amino-5-cyan-6-oxo-1-phenyl-1,6-dihydro-pyridazin-3-carbonsaeureethylester 

Downstream Products

• 439943-77-8 4-amino-5-cyano-6-oxo-3-formamido-N-(4-oxo-2-thioxo-5-benzal-thiazolidin-3-yl)-1-phenylpyridazine 
• 439943-82-5 4-amino-5-cyano-6-oxo-3-formamido-N-(5-cyano-4-hydroxy-2-thioxothiazolo-3-yl)-1-phenylpyridazine 
• 439943-89-2 4-amino-5-cyano-6-oxo-3-formamido-N-(4-phenyl-2-thioxothiazolo-3-yl)-1-phenylpyridazine 
• 439943-76-7 4-amino-5-cyano-6-oxo-3-formamido-N-(4-oxo-2-thioxo-5-ylideno-thiazolidin-3-yl)-1-phenylpyridazine 
• 439943-72-3 4-amino-5-cyano-6-oxo-3-formamido-N-(4-oxo-2-thioxothiazolidin-3-yl)-1-phenylpyridazine 

Relevant academic research and scientific papers

Synthesis of Polyfunctionally Substituted Pyridazines

The pyridazines 3,4,5, and 7 were obtained by reaction of the hydrazone derivatives 2 with several reagents.By treatment of 5 with acetic acid/hydrochloric acid, the pyrazolopyridazine 6 was formed.The pyrido-pyridazine derivatives 8 and 9 were obtained by reaction of 2 and 3 with malononitrile and ethyl cyanoacetate, respectively, and the isoxazolo-pyridazines 11 by reaction of 3a,b with hydroxylamine hydrochloride in ethanolic sodium ethoxide solution.The intermediate 9 was separated by reaction of 3a,b with hydroxylamine hydrochloride in ethanolic sodium acetate solution.