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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 915008Generated: October 25, 2026

Acetic Acid → HCID 69332645, compound

https://huagongshe.com/reaction/915008

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantWaterHCID 962—
ReactantSodium hydrideHCID 24758—
ReactantMethyl [1-(1-isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-2-oxo-2-phenylethyl]carbamateHCID 86600904—
SolventDimethylformamideHCID 6228—
ProductHCID 69332645HCID 6933264570.2%

Reaction Conditions

Temperature72.5 °C

Reaction Steps

A solution of methyl [1-(1-isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-2-oxo-2-phenylethyl]carbamate (2.46 g) in DMF (10 ml) was added to a suspension of NaH (60% dispersion in mineral oil) (314 mg) in DMF (15 ml) and the mixture was heated at 70-75° C. for 3 hours. A mixture of AcOH (0.5 ml) and water (75 ml) was added to the mixture to give a precipitate. The precipitate was collected by filtration and dried under reduced pressure to give 2-isopropyl-6-(2-oxo-5-phenyl-2,3-dihydro-oxazol-4-yl)-3(2H)-pyridazinone as a solid (1.56 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07265120B2
Source datasetuspto-grants-2007_09
ORD IDord-fb990572489b4d6aaaec89f9b908d543
Source noteuspto-grants-2007_09