HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2400334Generated: November 1, 2026
Triethylamine → 2-chloro-N-cyclopropyl-5-fluoropyrimidin-4-amine
https://huagongshe.com/reaction/2400334
Participants
| Role | Name | HCID | Charge |
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| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Cyclopropylamine | HCID 69828 | — |
| Reactant | 2,4-Dichloro-5-fluoropyridine | HCID 22061019 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | 2-chloro-N-cyclopropyl-5-fluoropyrimidin-4-amine | HCID 5306794 | 81.7% |
Reaction Steps
To 2,4 dichloro-5-fluoropyridine (1 g, 6 mmol) dissolved in CH3CN (8 ml) cooled in an ice bath was added Et3N (1.16 ml, 8.4 mmol) and cyclopropylamine (0.29 ml, 8.4 mmol) in CH3CN (2 ml). Reaction stirred 0° C. for 2 hours, evaporated water added and reaction extracted with EtOAc (×3). The organic fractions were combined washed with brine, dried over MgSO4, filtered and concentrated under reduced pressure to give the product (0.92 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08796244B2 |
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| Source dataset | uspto-grants-2014_08 |
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| ORD ID | ord-5e0cb507574b4ece835653e28df8ff43 |
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| Source note | uspto-grants-2014_08 |
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