Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 493976Generated: October 25, 2026

Ethanol → 2(1H)-Quinoxalinone

https://huagongshe.com/reaction/493976

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantO-PhenylenediamineHCID 7243—
Product2(1H)-QuinoxalinoneHCID 14526—

Reaction Steps

A mixture of the 1,2-phenylene-diamine derivative (1 g) and the 2-oxo-carboxylic acid derivative (1 eq) in dry EtOH (35 mL) was stirred at reflux for 2 h under nitrogen. After cooling, the EtOH was evaporated to give a crude brown solid. Recrystallisation from EtOH gave the desired quinoxalin-2-one derivative.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538109B2
Source datasetuspto-grants-2009_05
ORD IDord-e11bf6e15ac14fa9a03e91a18f60a7dd
Source noteuspto-grants-2009_05