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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1422228Generated: November 2, 2026

Hydrochloric Acid → N-(7-Bromo-2,3-dimethoxyquinoxalin-5-ylmethyl)-oxalamic acid

https://huagongshe.com/reaction/1422228

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium CarbonateHCID 11430—
ReactantN-(7-bromo-2,3-dimethoxy-quinoxalin-5-ylmethyl)-oxalamic acid ethyl esterHCID 54297612—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductN-(7-Bromo-2,3-dimethoxyquinoxalin-5-ylmethyl)-oxalamic acidHCID 18706444—

Reaction Steps

276 mg of N-(7-bromo-2,3-dimethoxy-quinoxalin-5-ylmethyl)-oxalamic acid ethyl ester and 150 mg of potassium carbonate are suspended in 2 ml of water and 5 ml of methanol. The mixture is stirred for 20 hours and acidified with 1 N HCl, and the solid is filtered off and washed with methanol and diethyl ether. M.p.>300° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06080743
Source datasetuspto-grants-2000_06
ORD IDord-34cd457fe3404f18af1c006d095a5696
Source noteuspto-grants-2000_06