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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 64053Generated: October 26, 2026

Potassium Carbonate → 4-Bromo-1-(cyclopropylmethyl)-1H-pyrazole

https://huagongshe.com/reaction/64053

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-BromopyrazoleHCID 16375—
ReactantBromomethylcyclopropaneHCID 81503—
SolventDimethylformamideHCID 6228—
Product4-Bromo-1-(cyclopropylmethyl)-1H-pyrazoleHCID 51072258109.7%

Reaction Steps

To a solution of 4-bromo-1H-pyrazole (0.1 g, 0.68 mmol) in DMF (20 ml) were added K2CO3 (0.19 g, 1.36 mmol, 2 eq.) and (bromomethyl)cyclopropane (92 mg, 0.68 mmol, 1 eq.). The mixture was stirred at RT for 4 h. The mixture was quenched and extracted as in Intermediate Example 5(c). The solvent was distilled off to afford the crude product (0.15 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09447091B2
Source datasetuspto-grants-2016_09
ORD IDord-a167ce228617490a96ee8259ff7c99af
Source noteuspto-grants-2016_09