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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 411676Generated: October 25, 2026

4-Bromo-3-phenyl-1H-pyrazol-5-amine → HCID 178517164, compound

https://huagongshe.com/reaction/411676

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromo-3-phenyl-1H-pyrazol-5-amineHCID 594319—
ReactantHCID 178418806HCID 178418806—
ReactantHCID 178517101HCID 178517101—
ReactantHCID 178517165HCID 178517165—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178517164HCID 178517164—

Reaction Steps

The named compound is prepared by substituting E & Z-3-[(hydroxy)-methylene]-5-chloro-1,3-dihydro-indol-2-one for E & Z-3-[(hydroxy)-methylene]-1,3-dihydro-indol-2-one and 4-bromo-5-phenyl-1H-pyrazol-3-ylamine for 3-aminopyrazole in the reaction of Example 1. Specifically, E & Z-3-[(hydroxy)-methylene]-5-chloro-1,3-dihydro-indol-2-one (0.1820 gms.) is reacted with 0.4511 gms. of 4-bromo-5-phenyl-1H-pyrazol-3-ylamine by refluxing in tetrahydrofuran (3.0 mL).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06559173B1
Source datasetuspto-grants-2003_05
ORD IDord-b0a8ba0eebec43e5920d546093ddbc02
Source noteuspto-grants-2003_05