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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 892341Generated: October 30, 2026

Acetic Acid → 2-methyl-1H-benzimidazole-5-carboxylic acid

https://huagongshe.com/reaction/892341

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant3,4-Diaminobenzoic acidHCID 69263—
SolventHydrochloric AcidHCID 313—
Product2-methyl-1H-benzimidazole-5-carboxylic acidHCID 1132609—

Reaction Steps

100 g (0.657 mol) of 3,4-diaminobenzoic acid are boiled under reflux with 47.3 g (0.788 mol) of glacial acetic acid and 600 ml of 4N HCl in analogy to Example 14a.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE033948
Source datasetuspto-grants-1992_06
ORD IDord-2fd7ec442d5b4246be5231cfd0fbd634
Source noteuspto-grants-1992_06