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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1751916Generated: October 28, 2026

Pyrazole → 1-Phenylpyrazole

https://huagongshe.com/reaction/1751916

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
ReactantBromobenzeneHCID 7961—
Product1-PhenylpyrazoleHCID 70769—

Reaction Steps

Following General Procedure A (90° C., 30 hours), 1H-pyrazole (205 mg, 3.0 mmol) is coupled with bromobenzene (212 μL, 2.0 mmol). The crude brown oil is purified by flash chromatography on silica gel (eluent: dichloromethane/hexanes=50/50) to provide 270 mg (94% isolated yield) of the desired product as a light yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09162953B2
Source datasetuspto-grants-2015_10
ORD IDord-60ba8e917b40427bb78ba763a9953e1e
Source noteuspto-grants-2015_10