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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1751922Generated: October 26, 2026

Pyrazole → 1-[4-(1H-pyrazol-1-yl)phenyl]ethan-1-one

https://huagongshe.com/reaction/1751922

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
Reactantp-BromoacetophenoneHCID 7466—
Product1-[4-(1H-pyrazol-1-yl)phenyl]ethan-1-oneHCID 12238134—

Reaction Steps

Following General Procedure A (90° C., 30 hours), 1H-pyrazole (205 mg, 3.0 mmol) is coupled with 1-(4-bromophenyl)ethanone (398 mg, 2.0 mmol). The crude brown oil is purified by flash chromatography on silica gel (eluent: dichloromethane/hexanes=50/50) to provide 300 mg (81% isolated yield) of the desired product as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09162953B2
Source datasetuspto-grants-2015_10
ORD IDord-78013a7d512844758db2bc9051580679
Source noteuspto-grants-2015_10