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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 884973Generated: October 30, 2026

Pyridine → HCID 66880243, compound

https://huagongshe.com/reaction/884973

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantIsonicotinic AcidHCID 5922—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
ReactantHCID 66880908HCID 66880908—
SolventWaterHCID 962—
ProductHCID 66880243HCID 6688024359%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 0.17 g of 2-amino-3-chloro-4-trifluoromethylphenol, 0.99 g of isonicotinic acid, 0.19 g of WSC and 3 ml of pyridine was stirred while heating at 80° C. for two hours. The mixture was cooled to room temperature, and then water was poured, followed by extraction with ethyl acetate three times. The combined organic layers were washed with water and a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.15 g of N-[2-chloro-6-hydroxy-3-(trifluoromethyl)phenyl]isonicotinamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08242133B2
Source datasetuspto-grants-2012_08
ORD IDord-2549a3d7aad942b3921619327879f57a
Source noteuspto-grants-2012_08