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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1807838Generated: November 1, 2026

Diethyl Oxalate → HCID 67133792, compound

https://huagongshe.com/reaction/1807838

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl OxalateHCID 7268—
Reactant4,5-Diamino-2-methyl-benzoic acid methyl esterHCID 58575220—
ProductHCID 67133792HCID 67133792—

Reaction Conditions

Temperature145 °C

Reaction Steps

A mixture of 3.98 g of methyl 4,5-diamino-2-methylbenzoate and 40 mL of diethyl oxalate was stirred at 145° C. for 3 hours. After cooling to room temperature, the solid was collected by filtration, washed with diethyl ether, and dried under reduced pressure to obtain 4.75 g of methyl 7-methyl-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-carboxylate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08357688B2
Source datasetuspto-grants-2013_01
ORD IDord-77fbdd955ca4430ba3b31c07a157e7c7
Source noteuspto-grants-2013_01