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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1578077Generated: October 30, 2026

Hydrochloric Acid → HCID 18928137, compound

https://huagongshe.com/reaction/1578077

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 20568840HCID 20568840—
SolventWaterHCID 962—
ProductHCID 18928137HCID 1892813760.7%

Reaction Steps

A suspension of 0.1 g of the product of Step C, 10 ml of ethanol, 20 ml of water and 3 ml of 1 N sodium hydroxide solution was refluxed overnight and the resulting clear solution was acidified with concentrated hydrochloric acid. The mixture was filtered to obtain 0.053 g of 4,5-dihydro-7,8-dibromo-4-oxoimidazo-[1,2-a]-quinoxaline-2-carboxylic acid as a buff crystalline solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04291033
Source datasetuspto-grants-1981_09
ORD IDord-adc7df2a5b0f4608ad2b003f945e0424
Source noteuspto-grants-1981_09