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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2190831Generated: November 1, 2026

Pyridine → HCID 66880242, compound

https://huagongshe.com/reaction/2190831

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantIsonicotinic AcidHCID 5922—
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactant2-Amino-4-((trifluoromethyl)thio)phenolHCID 23023105—
SolventWaterHCID 962—
ProductHCID 66880242HCID 6688024240.1%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 0.70 g of 2-amino-4-(trifluoromethylthio)phenol, 0.83 g of WSC, 0.41 g of isonicotinic acid and 7 ml of pyridine was stirred while heating at 80° C. for three hours. The reaction mixture was cooled to room temperature, and then water was poured into the reaction mixture, 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 then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.42 g of N-[2-hydroxy-5-(trifluoromethylthio)phenyl]isonicotinamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08324387B2
Source datasetuspto-grants-2012_12
ORD IDord-d046c88020874f51a23f85c44a4a6a69
Source noteuspto-grants-2012_12