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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1751924Generated: October 28, 2026

Pyrazole → 1-p-Tolyl-1H-pyrazole

https://huagongshe.com/reaction/1751924

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
Reactant4-BromotolueneHCID 7805—
Product1-p-Tolyl-1H-pyrazoleHCID 809797—

Reaction Steps

Following General Procedure A (125° C., 24 hours), 1H-pyrazole (102 mg, 1.5 mmol) is coupled with 1-bromo-4-methylbenzene (122 μL, 1.0 mmol). The crude brown oil is purified by flash chromatography on silica gel (eluent: dichloromethane/hexanes=70/30) to provide 90 mg (57% isolated yield) of the desired product as an uncolored oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09162953B2
Source datasetuspto-grants-2015_10
ORD IDord-e838b52e468c4130b8200b8f644fde57
Source noteuspto-grants-2015_10