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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2252122Generated: November 2, 2026

N-Methyloxindole → 4-Methyl-5-(1-methyl-2-oxo-1,2-dihydroindol-3-ylidenemethyl)-1H-pyrrole-2-carboxylic acid

https://huagongshe.com/reaction/2252122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-MethyloxindoleHCID 6096—
Reactant5-formyl-4-methyl-1H-pyrrole-2-carboxylic AcidHCID 9898884—
Product4-Methyl-5-(1-methyl-2-oxo-1,2-dihydroindol-3-ylidenemethyl)-1H-pyrrole-2-carboxylic acidHCID 6728155488.6%

Reaction Steps

1-Methyl-1,3-dihydroindol-2-one (147 mg, 1 mmol) was condensed with 5-formyl-4-methyl-1H-pyrrole-2-carboxylic acid (153 mg) using method D to give 250 mg (86%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07320996B2
Source datasetuspto-grants-2008_01
ORD IDord-d6fa909fa58a47849734130da96cdea1
Source noteuspto-grants-2008_01