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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1820714Generated: November 2, 2026

Phosphorus oxychloride → 4-Chloro-6-(trifluoromethyl)pyrimidine

https://huagongshe.com/reaction/1820714

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 178516143HCID 178516143—
Product4-Chloro-6-(trifluoromethyl)pyrimidineHCID 11542881—

Reaction Steps

6-Trifluoromethyl-pyrimidin-4-ol ([1546-78-7], 5 g) was refluxed in phosphorus oxychloride (17 mL) for 2 hours. The reaction mixture was carefully concentrated in vacuo and the residue was distilled (Kugelrohr) under reduced pressure (bp=30-55° C.@10 mbar) to yield the title compound ([37552-81-1], 1.4 g). MS (EI): 182.0 (M).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07605163B2
Source datasetuspto-grants-2009_10
ORD IDord-1d001d3be51b4dc395fc6562aa9ad39d
Source noteuspto-grants-2009_10