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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2252294Generated: October 26, 2026

Hydrochloric Acid → 1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]methanamine hydrochloride

https://huagongshe.com/reaction/2252294

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant3-Chloro-5-(trifluoromethyl)pyridine-2-carbonitrileHCID 1473374—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]methanamine hydrochlorideHCID 1149974495%

Reaction Steps

A mixture of 3-chloro-2-cyano-5-trifluoromethylpyridine (5.1 g) and 5% palladium on charcoal (5.1 mg as Pd metal) was stirred at 20° C. with methanol and concentrated hydrochloric acid (2.5 ml) under 1 atmosphere of hydrogen. After 4 hours the reaction was judged to be complete by hplc. The mixture was filtered through Celatom, washed with methanol and water and evaporated to give 2-aminomethyl-3-chloro-5-trifluoromethylpyridine hydrochloride in 95-97% yield, NMR (in D2O) 4.6 (s, 2H), 8,35 (s, 1H), 8.9 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07321043B2
Source datasetuspto-grants-2008_01
ORD IDord-85339ace801944f38fe3e129bf92b4e4
Source noteuspto-grants-2008_01