HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1197860Generated: November 1, 2026
Acetic Acid → 2-Chloro-4-ethyl-5-fluoropyrimidine
https://huagongshe.com/reaction/1197860
Participants
| Role | Name | HCID | Charge |
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| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | 2,4-Dichloro-5-fluoropyrimidine | HCID 250705 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Product | 2-Chloro-4-ethyl-5-fluoropyrimidine | HCID 19074928 | — |
Reaction Steps
The product of part (i) (3.2 g) was dissolved in acetic acid (25 ml) and diluted with 5N HCl (10 ml). After heating the mixture at 100° C. for 16 hours the mixture was cooled and partitioned between water (30 ml) and dichloromethane (45 ml). The dichloromethane layer was separated, dried and concentrated under reduced pressure to give an oil. The title compound was isolated by chromatography on silica gel using dichloromethane as the eluent. The product was characterised by 1H-NMR and mass spectrometry (yield=350 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05278175 |
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| Source dataset | uspto-grants-1994_01 |
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| ORD ID | ord-e2ac9bc9ddae4580ae6584d4f520c031 |
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| Source note | uspto-grants-1994_01 |
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