HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2241255Generated: November 2, 2026
4-Fluoroaniline → 5-bromo-2-(4-fluorophenylamino)-3-methylpyrimidin-4(3H)-one
https://huagongshe.com/reaction/2241255
Participants
| Role | Name | HCID | Charge |
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| Reactant | 4-Fluoroaniline | HCID 9731 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | 5-bromo-2-chloro-3-methylpyrimidin-4(3H)-one | HCID 67348611 | — |
| Solvent | 1-Butanol | HCID 263 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 5-bromo-2-(4-fluorophenylamino)-3-methylpyrimidin-4(3H)-one | HCID 68515190 | 99% |
Reaction Steps
A mixture of 5-bromo-2-chloro-3-methylpyrimidin-4(3H)-one (0.100 g, 0.448 mmol; prepared according to the procedure of Example 46, Step B), 4-fluorobenzenamine (0.056 ml, 0.582 mmol) and NaHCO3 (0.150 g, 1.79 mmol) in n-BuOH (3 mL) was stirred at 60° C. overnight. The reaction mixture was cooled to room temperature and then diluted with EtOAc. The EtOAc layer washed with H2O and saturated aqueous NaCl. The aqueous phase was re-extracted with EtOAc. The combined EtOAc layers were dried (Na2SO4), filtered and concentrated to yield the desired product (0.132 g, 99%) as a pale yellow solid that was used without further purification.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07723330B2 |
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| Source dataset | uspto-grants-2010_05 |
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| ORD ID | ord-14202cdaf4284259b330f52746160049 |
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| Source note | uspto-grants-2010_05 |
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