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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 595171Generated: October 30, 2026

2-Chloro-4-(trifluoromethyl)pyrimidine → N-(3-bromo-5-chlorophenyl)-4-(trifluoromethyl)pyrimidin-2-amine

https://huagongshe.com/reaction/595171

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloro-4-(trifluoromethyl)pyrimidineHCID 2773912—
Reactant3-Bromo-5-chloroanilineHCID 3084709—
ReactantPotassium tert-butoxideHCID 23665647—
SolventTetrahydrofuranHCID 8028—
SolventAmmonium ChlorideHCID 25517—
ProductN-(3-bromo-5-chlorophenyl)-4-(trifluoromethyl)pyrimidin-2-amineHCID 117670750—

Reaction Conditions

Temperature70 °C

Reaction Steps

Potassium tert-butoxide (750 mg, 6.69 mmol) was added to a solution of 2-chloro-4-(trifluoromethyl)pyrimidine (406 mg, 2.23 mmol) and 3-bromo-5-chloroaniline (460 mg 2.23 mmol) in THF (20 mL) at 0° C. under a nitrogen atmosphere. The mixture was stirred at 70° C. for 12 hours. The mixture was then diluted with saturated aqueous ammonium chloride solution and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, filtered, and concentrated under reduced pressure. The product was purified by chromatography on silica gel to give N-(3-bromo-5-chlorophenyl)-4-(trifluoromethyl)pyrimidin-2-amine MS ESI calc'd. for C11H7BrClF3N3 [M+H]+ 352 and 354. found 352 and 354.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09242984B2
Source datasetuspto-grants-2016_01
ORD IDord-8b4fdbe0aac04c71b9827bb84a4fa6fb
Source noteuspto-grants-2016_01