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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 272636Generated: November 1, 2026

Trifluoroacetic acid → HCID 59837993, compound

https://huagongshe.com/reaction/272636

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantPropargyl alcoholHCID 7859—
Reactant2,4-Dichloro-5-(trifluoromethyl)pyrimidineHCID 2782774—
ProductHCID 59837993HCID 59837993—

Reaction Conditions

Temperature0 °C

Reaction Steps

3.97 ml (68.2 mmol) Prop-2-yn-1-ol are slowly added to 3.40 g (15.6 mmol) of 2,4-Dichloro-5-trifluoromethyl-pyrimidine at 0° C. under a nitrogen atmosphere. 0.79 ml Trifluoro-acetic acid are added dropwise and the batch is stirred for 6 hours at 0° C. The batch is poured on ice and extracted with ethyl acetate (3×). The combined organic phases are washed with water, dried (Na2SO4), filtered and concentrated by evaporation. The remaining residue is purified by chromatography (hexane/ethyl acetate 95:5). 591 mg (2.5 mmol, corresponding to 16% of theory) of the product is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07456191B2
Source datasetuspto-grants-2008_11
ORD IDord-3cdb3d4465db4b8b9a2caf4f80f7592c
Source noteuspto-grants-2008_11