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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 375531Generated: November 2, 2026

Triethylamine → HCID 67746822, compound

https://huagongshe.com/reaction/375531

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantTri-o-tolylphosphineHCID 80271—
Reactant2-(4-bromophenyl)-1H-benzimidazoleHCID 286182—
ReactantHCID 18993040HCID 18993040—
Catalystpalladium(II) acetateHCID 167845—
SolventAcetonitrileHCID 6342—
ProductAmmoniaHCID 222—
ProductHCID 67746822HCID 6774682230.4%

Reaction Steps

A mixture of 2-(4-bromophenyl)-1H-benzimidazole (Example F) (8.08 g), 1-but-3-enyl-4-phenylpiperazine (Example G) (8.0 g), palladium acetate (0.66 g), tri-o-tolylphosphine (1.8 g) and triethylamine (7.05 g) in acetonitrile (100 mL) is stirred at reflux for 2 hours. The mixture is cooled and filtered through Celite. The filtrate is evaporated to leave a brown solid. This solid is purified by MPLC on silica gel eluting with 100:8:1 dichloromethane: ethanol: 0.880 aqueous ammonia to give 1.84 g of the title compound as a white solid; mp 140°-145° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05486517
Source datasetuspto-grants-1996_01
ORD IDord-58e9532f1c9a4e5fb612bfaaf26b7ec6
Source noteuspto-grants-1996_01