Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Methyl [1-(1-isopropyl-6-oxo-1,6-dihydro-3-pyridazinyl)-2-oxo-2-phenylethyl]carbamate | HCID 86600904 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 69332645 | HCID 69332645 | 70.2% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07265120B2 |
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| Source dataset | uspto-grants-2007_09 |
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| ORD ID | ord-fb990572489b4d6aaaec89f9b908d543 |
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| Source note | uspto-grants-2007_09 |
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