HCID 178500928, compound → Methyl 1,6-dihydro-4-hydroxy-6-oxo-1-phenyl-3-pyridazinecarboxylate

Participants

Reaction Steps

A mixture of 3-oxo-2-(phenyl-hydrazono)-pentanedioic acid dimethyl ester (4.38 g, 15.7 mmol) in 1,2-dichlorobenzene (15 mL) was refluxed. After 20 hours, the reaction mixture was concentrated under reduced pressure to give 3.83 g (99%) of the desired product.

Provenance & Evidence