Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1913684Generated: November 2, 2026

Pyridine → HCID 66879863, compound

https://huagongshe.com/reaction/1913684

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantIsonicotinic AcidHCID 5922—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactant2-Amino-4-(trifluoromethyl)phenolHCID 120246—
SolventWaterHCID 962—
ProductHCID 66879863HCID 6687986337.4%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 2.84 g of 2-amino-4-trifluoromethylphenol, 1.97 g of isonicotinic acid, 3.69 g of WSC [1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride] and 20 ml of pyridine was stirred while heating at 80° C. for four hours. The reaction mixture was cooled to room temperature, and then water was poured, followed by extraction with ethyl acetate twice. The combined organic layers were washed with water and a saturated sodium chloride solution, dried over magnesium sulfate, and then concentrated under reduced pressure. The residue was washed with an ethyl acetate-hexane mixture solvent to give 1.69 g of N-(2-hydroxy-5-trifluoromethylphenyl)isonicotinamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609705B2
Source datasetuspto-grants-2013_12
ORD IDord-c097955458494185aae7db4335da6934
Source noteuspto-grants-2013_12