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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1489150Generated: October 25, 2026

Hydrochloric Acid → 4,5,6,7-Tetrahydro-1H-benzo(d)imidazole-5-carboxylic acid hydrochloride

https://huagongshe.com/reaction/1489150

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl 4,5,6,7-tetrahydro-1H-benzo[d]imidazole-6-carboxylateHCID 21222281—
Product4,5,6,7-Tetrahydro-1H-benzo(d)imidazole-5-carboxylic acid hydrochlorideHCID 53231038—

Reaction Steps

A 0.3 g portion of this ethyl (+)-4.5,6,7-tetrahydrobenzimidazole-5-carboxylate was dissolved in 2 ml of 6N hydrochloric acid and refluxed for 1.5 hours, and then evaporated to dryness under reduced pressure to obtain 4,5,6,7-tetrahydrobenzimidazole-5-carboxylic acid hydrochloride with the optical rotation indicated below. mp: 245°-248° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05677326
Source datasetuspto-grants-1997_10
ORD IDord-03ee7c386b1c427d83ca0571a43337fd
Source noteuspto-grants-1997_10