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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1068586Generated: October 31, 2026

Oxalic Acid → 2,3-Dihydroxy-6,7-dimethoxyquinoxaline

https://huagongshe.com/reaction/1068586

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic AcidHCID 971—
Reactant1,2-Diamino-4,5-dimethoxybenzeneHCID 152939—
Product2,3-Dihydroxy-6,7-dimethoxyquinoxalineHCID 613780—

Reaction Steps

6,7-Dimethoxy-1,4-dihydroquinoxaline-2,3-dione was prepared from 1,2-dimethoxybenzene. Nitration of 1,2-dimethoxybenzene gave 1,2-dimethoxy-4,5-dinitrobenzene, which was reduced to 1,2-diamino-4,5-dimethoxybenzene. Condensation of the diamine with oxalic acid gave 6,7-dimethoxy-1,4-dihydroquinoxaline-2,3-dione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06251903B1
Source datasetuspto-grants-2001_06
ORD IDord-c89c4eb38e0a454199387138e99e320d
Source noteuspto-grants-2001_06