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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1586465Generated: October 31, 2026

Sulfuric Acid → Benzenamine, 2-[(1H-benzimidazol-2-ylthio)methyl]-

https://huagongshe.com/reaction/1586465

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant2-Aminobenzyl alcoholHCID 21439—
ReactantHCID 69793239HCID 69793239—
ReactantHCID 178527775HCID 178527775—
SolventAcetic AcidHCID 176—
ProductBenzenamine, 2-[(1H-benzimidazol-2-ylthio)methyl]-HCID 11054238—

Reaction Steps

A mixture of 9.0 g (60 mMol) of 2-mercaptobenzimidazole and 4.9 g (40 mMol) of 2-aminobenzyl alcohol were heated at 84° C. in a mixture of 45 ml of glacial acetic acid and 12.0 g (120 mMol) of sulfuric acid. After two hours an additional 1 g (8 mMol) of 2-aminobenzyl alcohol and 1 g of sulfuric acid were added. After one hour the reaction mixture was cooled and poured into cold benzenamine hemihydrate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05945425
Source datasetuspto-grants-1999_08
ORD IDord-4f4360a0d1a74c708a6edd237279810f
Source noteuspto-grants-1999_08