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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1650604Generated: October 30, 2026

Pyridine → HCID 178443473, compound

https://huagongshe.com/reaction/1650604

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantOxalyl chlorideHCID 65578—
Reactant2,3-Difluoro-4-hydroxybenzonitrileHCID 2736978—
ReactantHCID 178443472HCID 178443472—
SolventTolueneHCID 1140—
SolventDichloromethaneHCID 6344—
ProductHCID 178443473HCID 178443473—

Reaction Steps

A mixture of 0.1 mole of trans-4-octylcyclohexanecarbonyl chloride (prepared from the carboxylic acid with oxalyl chloride in toluene) and 75 ml of methylene dichloride is added to a mixture of 0.1 mole of 2,3-difluoro-4-cyanophenol (prepared as in Example 1), 0.12 mole of pyridine, 10 mmole of 4-N,N-dimethylaminopyridine and 250 ml of methylene dichloride. After being stirred for 10 hours at room temperature, the mixture is washed with dilute hydrochloric acid, saturated sodium bicarbonate solution and water. Working up in the customary manner gives 4-(trans-4-octylcyclohexanecarbonyloxy)-2,3-difluorobenzonitrile.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04925590
Source datasetuspto-grants-1990_05
ORD IDord-f29e778f9cef43aaa3ea3410263e8cea
Source noteuspto-grants-1990_05