Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 4-[(4-Bromo-2-fluorophenyl)amino]-5-nitro-2(1H)-pyridinone | HCID 57438273 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 58259902 | HCID 58259902 | 87% |
Reaction Steps
To the yellow solution of 4-(4-bromo-2-fluorophenylamino)-5-nitropyridin-2(1H)-one (1.235 g, 3.78 mmol) dissolved in dry DMF (15 mL) at −5->0° C., was added NaH (182 mg, 4.55 mmol) (60% in oil). The color of solution turned into dark brown in 20 min at 0° C. The stirring was continued at r.t. for 40 minutes, followed by the addition of MeI (283 uL, 4.54 mmol) through a syringe at 5° C. The resulted solution was stirred at r.t. for 36 hours. The desired compound started to precipitate out of solution after 20 min of MeI addition. Water was added, and the precipitate was vacuum filtered, washed with water, and dried at 40° C. under a high vacuum for 2.5 hours. The product was used for the next reaction without further purification. (1.12 gram, 87% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07897624B2 |
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| Source dataset | uspto-grants-2011_03 |
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| ORD ID | ord-b2679c64bf2e43f3b2dd7b3c0bb98306 |
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| Source note | uspto-grants-2011_03 |
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