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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2093455Generated: October 31, 2026

Phosphorus tribromide → 4-Bromo-2-(trifluoromethyl)pyrimidine

https://huagongshe.com/reaction/2093455

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
ReactantHCID 178516506HCID 178516506—
Product4-Bromo-2-(trifluoromethyl)pyrimidineHCID 53302344—

Reaction Conditions

Temperature150 °C

Reaction Steps

The 2-(trifluoromethyl)pyrimidin-4-ol (328 mg, 2.0 mmol) and PBr3 (0.188 mL, 2.0 mmol) were mixed and heated at 150° C. for 3 h. The reaction was cooled down and quenched with ice water, extracted with DCM (20 mL×2) to yield the titled compound. The organic phase was concentrated and crude material was purified by preparative TLC with 20% Acetone:Hexane to yield titled compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445499B2
Source datasetuspto-grants-2013_05
ORD IDord-bcec6bd2fc714ad48b39e26ebfcac891
Source noteuspto-grants-2013_05