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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 629283Generated: October 30, 2026

6-Bromo-3-(2,4-difluoro-phenyl)-imidazo[1,2-a]pyridine → 6-[2-(4-Chloro-phenyl)-2H-pyrazol-3-yl]-3-(2,4-difluoro-phenyl)-imidazo[1,2-a]pyridine

https://huagongshe.com/reaction/629283

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-Bromo-3-(2,4-difluoro-phenyl)-imidazo[1,2-a]pyridineHCID 90189305—
Reactant1-(4-chlorophenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 90189331—
Product6-[2-(4-Chloro-phenyl)-2H-pyrazol-3-yl]-3-(2,4-difluoro-phenyl)-imidazo[1,2-a]pyridineHCID 76072460—

Reaction Steps

The title compound, white solid (40 mg, 30%), MS (ISP) m/z=407.4 [(M+H)+], mp 152° C., was prepared in accordance with the general method of example 1 from 6-bromo-3-(2,4-difluoro-phenyl)-imidazo[1,2-a]pyridine (intermediate K) (0.1 g, 0.324 mmol) and 1-(4-chloro-phenyl)-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (intermediate B) (0.12 g, 0.39 mmol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315502B2
Source datasetuspto-grants-2016_04
ORD IDord-b8b852b9a03a47629c65d1f6ef88bf7a
Source noteuspto-grants-2016_04