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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 746669Generated: October 25, 2026

3-Amino-5-phenylpyrazole → 4-methyl-3-[[(5-phenyl-1H-pyrazol-3-yl)amino]methylidene]-1H-indol-2-one

https://huagongshe.com/reaction/746669

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Amino-5-phenylpyrazoleHCID 136655—
ReactantHCID 178418806HCID 178418806—
ReactantHCID 178423596HCID 178423596—
ReactantHCID 178517101HCID 178517101—
SolventTetrahydrofuranHCID 8028—
Product4-methyl-3-[[(5-phenyl-1H-pyrazol-3-yl)amino]methylidene]-1H-indol-2-oneHCID 178423592—

Reaction Steps

The named compound is prepared by substituting E & Z-3-[(hydroxy)-methylene]-4-methyl-1,3-dihydro-indol-2-one for E & Z-3-[(hydroxy)-methylene]-1,3-dihydro-indol-2-one and substituting 3-amino-5-phenylpyrazole for 3-aminopyrazole in the reaction of Example 1. Specifically, E & Z-3-[(hydroxy)-methylene]-4-methyl-1,3-dihydro-indol-2-one (0.110 gms.) is reacted with 0.2398 gms. 3-amino-5-phenylpyrazole by refluxing in tetrahydrofuran (2.5 mL).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07393870B2
Source datasetuspto-grants-2008_07
ORD IDord-c89422cd886d4af985a8d5c1954f52db
Source noteuspto-grants-2008_07