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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1733218Generated: November 1, 2026

Ethanolamine → HCID 178526234, compound

https://huagongshe.com/reaction/1733218

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant2-Formylquinoxaline-1,4-dioxide hydrateHCID 178526945—
CatalystMethanolHCID 887—
SolventTriethylamineHCID 8471—
ProductHCID 178526234HCID 178526234—

Reaction Steps

2-Formylquinoxaline-1,4-dioxide hydrate 4 g (0.02 mole) was dissolved at 60°-65° C. in 30 ml methanol containing 2-4 drops of triethylamine. The solution was agitated and 1.5 g (0.0246 mole) of ethanolamine was added. The heat source was removed and the mixture was then allowed to cool slowly to room temperature with stirring. There was obtained a precipitate of 2-(2-oxazolidinyl)quinoxaline-1,4-dioxide (hereinafter designated P-2244 for convenience). The precipitate was filtered, rinsed with a small amount of methanol, then dried. The resulting product had a melting point of 153°-154° C. and analyzed as follows:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04241061
Source datasetuspto-grants-1980_12
ORD IDord-9072884705c1461aa46b69ae7e870348
Source noteuspto-grants-1980_12