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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 848481Generated: October 29, 2026

Water → 1-(4-Chlorophenyl)-1,2-dihydro-3-(N-piperidyl)quinoxalin-2-one

https://huagongshe.com/reaction/848481

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPiperidineHCID 8082—
ReactantTriethylamineHCID 8471—
Reactant3-Chloro-1-(4-chlorophenyl)-1,2-dihydroquinoxalin-2-oneHCID 20565466—
SolventEthanolHCID 702—
Product1-(4-Chlorophenyl)-1,2-dihydro-3-(N-piperidyl)quinoxalin-2-oneHCID 20565489—

Reaction Steps

A solution of 3-chloro-1-(4-chlorophenyl)-1,2-dihydroquinoxalin-2-one (7.5 g), piperidine (2.4 g), and triethylamine (2.9 g) in ethanol (50 ml) was stirred at 20° C. for 2 hours. Water was added and the product was extracted into chloroform. Evaporation of the solvent and recrystallisation from ethanol gave the title compound mp 184°-185° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04296114
Source datasetuspto-grants-1981_10
ORD IDord-e4921bda3faf46709a582a9c16f64894
Source noteuspto-grants-1981_10