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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2386799Generated: October 31, 2026

Methanol → Methyl 2-chloro-5-(trifluoromethyl)pyridine-4-carboxylate

https://huagongshe.com/reaction/2386799

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantOxalyl chlorideHCID 65578—
Reactant2-Chloro-5-(trifluoromethyl)pyridine-4-carboxylic acidHCID 11264608—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductMethyl 2-chloro-5-(trifluoromethyl)pyridine-4-carboxylateHCID 71299630—

Reaction Steps

Oxalyl chloride (0.5 ml) was added to a solution of 2-chloro-5-(trifluoromethyl)isonicotinic acid (CAS Reg. No. 505084-58-2, 68 mg) in DCM (5 ml). DMF (1 drop) was added and the resulting mixture was stirred overnight at room temperature. Methanol (5 ml) was added and the mixture was concentrated to dryness. The crude product was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08268820B2
Source datasetuspto-grants-2012_09
ORD IDord-392ec75cd9614ab18dd961e4217e665d
Source noteuspto-grants-2012_09