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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantCyclopropylamineHCID 69828—
Reactant2,4-Dichloro-5-fluoropyridineHCID 22061019—
SolventAcetonitrileHCID 6342—
Product2-chloro-N-cyclopropyl-5-fluoropyrimidin-4-amineHCID 530679481.7%

Reaction Conditions

Temperature0 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08796244B2
Source datasetuspto-grants-2014_08
ORD IDord-5e0cb507574b4ece835653e28df8ff43
Source noteuspto-grants-2014_08