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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 539759Generated: October 31, 2026

Acetic Acid → 5-(6-Bromoimidazo[1,2-a]pyridin-2-yl)-2-(trifluoromethyl)aniline

https://huagongshe.com/reaction/539759

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant6-Bromo-2-[3-nitro-4-(trifluoromethyl)phenyl]imidazo[1,2-a]pyridineHCID 67982711—
CatalystIronHCID 23925—
SolventWater ethanolHCID 19096565—
Product5-(6-Bromoimidazo[1,2-a]pyridin-2-yl)-2-(trifluoromethyl)anilineHCID 5751627181.2%

Reaction Conditions

Temperature80 °C

Reaction Steps

Fe (0.447 g) is added to a mixture of 6-bromo-2-[3-nitro-4-(trifluoromethyl)phenyl]imidazo[1,2-a]pyridine (0.618 g), HOAc (0.733 mL), and EtOH—H2O (10 mL, 4:1). The mixture is stirred at 80° C. for 2 hours, then concentrated, taken into sat. aqueous NaHCO3 and extracted with EtOAc and CH2Cl2. Organics are dried and concentrated to give the title compound (463 mg), which is used without further purification. LCMS m/z=356.4 [M+H]+, tR=2.04 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08871767B2
Source datasetuspto-grants-2014_10
ORD IDord-9d36e7de0956449e8384b29e2f64eb86
Source noteuspto-grants-2014_10