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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 33480Generated: October 29, 2026

Thionyl Chloride → HCID 69106520, compound

https://huagongshe.com/reaction/33480

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant[5-(4-Trifluoromethyl-phenyl)-pyridin-2-yl]-methanolHCID 21936189—
SolventDimethylformamideHCID 6228—
ProductHCID 69106520HCID 6910652023%

Reaction Conditions

Temperature0 °C

Reaction Steps

658 mg (0.40 ml, 5.53 mmol) thionyl chloride is added drop by drop at 0° C. to a solution of 0.2 ml N,N-dimethylformamide (DMF) and 700 mg (2.76 mmol) [5-(4-Trifluoromethyl-phenyl)-pyridin-2-yl]-methanol, stirred for 5 min. at 0° C., and at room temperature (r.t.) for 1 h. The mixture is poured on ice/sodium bicarbonate solution and the organic phase separated. The water phase is extracted with ethyl acetate. The combined organic phases were washed with water, dried (sodium sulphate), and evaporated. Purification by chromatography on silica (eluent: ethyl acetate/n-heptane 1:4) gave 170 mg (23%) of 2-Chloromethyl-5-(4-trifluoromethyl-phenyl)-pyridine as slightly pink crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07429605B2
Source datasetuspto-grants-2008_09
ORD IDord-316b49fa985340f99c4901bf58bce526
Source noteuspto-grants-2008_09