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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2262742Generated: November 4, 2026

p-Toluenesulfonic acid → 1-(1-(3-bromophenyl)-1H-benzo[d]imidazol-5-yl)ethanone

https://huagongshe.com/reaction/2262742

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantEthyl orthoformateHCID 31214—
Reactant1-[3-Amino-4-(3-bromo-phenylamino)-phenyl]-ethanoneHCID 53988946—
SolventTetrahydrofuranHCID 8028—
Product1-(1-(3-bromophenyl)-1H-benzo[d]imidazol-5-yl)ethanoneHCID 54030307—

Reaction Steps

This was prepared from 1-[3-amino-4-(3-bromo-phenylamino)-phenyl]-ethanone (86.5 g, 0.28 mol) by treatment with triethyl orthoformate in THF in the presence of p-toluenesulfonic acid as described in Example 1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851490B2
Source datasetuspto-grants-2010_12
ORD IDord-a1b5c198050f45bb8d5cbcb3a7a1ed36
Source noteuspto-grants-2010_12