21050-73-7

Basic information

• Product Name: 4,5-Pyridazinedicarboxylic acid, diethyl ester
• Synonyms: diethyl 4,5-pyridazinedicarboxylate;4,5-Pyridazinedicarboxylic acid,diethyl ester;pyridazine-4,5-dicarboxylic acid diethyl ester;Pyridazin-4,5-dicarbonsaeure-diethylester;Diethylpyridazin-4,5-dicarboxylat
• CAS NO: 21050-73-7
• Molecular Formula: C10H12N2O4
• Molecular Weight: 224.21300
• Mol File: 21050-73-7.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 4,5-Pyridazinedicarboxylic acid, diethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-Pyridazinedicarboxylic acid, diethyl ester(21050-73-7)
• EPA Substance Registry System: 4,5-Pyridazinedicarboxylic acid, diethyl ester(21050-73-7)

Safety Data

• Hazardous Substances Data: 21050-73-7(Hazardous Substances Data)

Upstream product

• 289-80-5 1,2-diazine 
• 617-35-6 2-oxo-propionic acid ethyl ester 

Relevant articles and documents

A simple and efficient route to cycloalkene-fused 2,3- dihydrophthalazine-1(4H),4-diones

A convenient method for the preparation of cycloalkene-annelated 2,3- dihydrophthalazine-1(4H),4-diones, starting from a pyridazino [4,5- d]pyridazine diazadiene is detailed.

PYRIDAZINES XXIV. APPLICATION OF RADICALIC ETHOXYCARBONYLATION TO THE SYNTHESIS OF PYRIDAZINE MONO- AND POLYCARBOXYLIC ACID ESTERS

Reactivity of pyridazines 1, 2, 3, 16 towards ethoxycarbonylradical (generated by redox decomposition of oxyhydroperoxyde of ethylpyruvate) was studied.Application of this type of homolytic substitution for synthesis of hitherto not accessible pyridazine carboxylic acid esters 6, 8, 9, 12, 13, 14, 15, 17 is demonstrated.In addition improved synthesis of diethyl 4,5-pyridazinedicarboxylate (5) is proposed.