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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1721858Generated: November 4, 2026

Ethanol → HCID 14649979, compound

https://huagongshe.com/reaction/1721858

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantNitroureaHCID 62372—
Reactant4-(2,3,4,5,6-Pentafluorophenoxy)-4-phenylpiperidineHCID 14649978—
SolventWaterHCID 962—
ProductHCID 14649979HCID 1464997964.81%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 4.89 g of 4-(2,3,4,5,6-pentafluorophenoxy)-4-phenylpiperidine, 50 ml of 95% ethanol and 2.1 g of nitrourea was refluxed at 70° C. until the evolution of gas had ceased. After refluxing for an additional 30 minutes, the mixture was cooled, treated with 200 ml of water and extracted with dichloromethane. The organic layer was washed with water, dried over anhydrous magnesium sulfate, filtered, and concentrated. The concentrate was purified by means of high pressure liquid chromatography (silica gel; elution with ethyl acetate) to yield 3.5 g (64.81%) of 1-aminocarbonyl-4-(2,3,4,5,6-pentafluorophenoxy)-4-phenylpiperidine, m.p. 155°-160° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04853384
Source datasetuspto-grants-1989_08
ORD IDord-4ce835f9cd4d47babdc781b5a6f611fb
Source noteuspto-grants-1989_08