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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2374142Generated: October 30, 2026

2-Bromopyridine → 1-(Pyridin-2-yl)-1H-pyrazole-4-carbaldehyde

https://huagongshe.com/reaction/2374142

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-BromopyridineHCID 7973—
ReactantPotassium CarbonateHCID 11430—
Reactant1H-Pyrazole-3-carbaldehydeHCID 12218383—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product1-(Pyridin-2-yl)-1H-pyrazole-4-carbaldehydeHCID 24704893—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 2-bromopyridine (3.4 mmol), 3-pyrazolecarboxaldehyde (3.2 mmol), and potassium carbonate (3.4 mmol) in anhydrous DMF (6 mL) was heated to 120° C. for 24 h. The reaction was cooled to RT, diluted with water, and extracted with EtOAc (3 x). The organic layers were combined and dried (Na2SO4), filtered, and concentrated. The title compound was obtained upon purification (SGC using EtOAc:hexanes gradient eluant from 0% to 100% EtOAc).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07462600B2
Source datasetuspto-grants-2008_12
ORD IDord-ddf04c95c67f4704841a0f5dbde79a7b
Source noteuspto-grants-2008_12