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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2362234Generated: October 31, 2026

HCID 16128050, compound → HCID 67180116, compound

https://huagongshe.com/reaction/2362234

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 16128050HCID 16128050—
ReactantEthyl 7-(4-bromophenyl)-4,7-dioxoheptanoateHCID 58297650—
CatalystZinc trifluoromethanesulfonateHCID 104671—
SolventEthanolHCID 702—
ProductHCID 67180116HCID 671801167.2%

Reaction Steps

To a solution of ethyl 7-(4-bromophenyl)-4,7-dioxoheptanoate (5B) (2.56 g, 7.5 mmol) and 5-(1H-imidazol-1-yl)pyridin-2-amine (1.20 g, 7.5 mmol) in 15 mL of ethanol was added Zn(OTf)2 (8.18 g, 22.5 mmol). The resultant mixture was heated at 120° C. for 4 h under microwave irradiation and then concentrated to dryness. The resultant residue was dissolved in EA, washed with water and brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE:EA=6:1) to afford ethyl 3-(1-(5-(1H-imidazol-1-yl)pyridin-2-yl)-5-(4-bromophenyl)-1H-pyrrol-2-yl)propanoate as a brown oil (250 mg, 7.1%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08691816B2
Source datasetuspto-grants-2014_04
ORD IDord-49f28482e28149f1bf457b2ccc3727d5
Source noteuspto-grants-2014_04