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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1008147Generated: October 30, 2026

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

https://huagongshe.com/reaction/1008147

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxindoleHCID 321710—
ReactantMethyl 5-formyl-4-methyl-1H-pyrrole-2-carboxylateHCID 9834057—
Product4-Methyl-5-(2-oxo-1,2-dihydroindol-3-ylidenemethyl)-1H-pyrrole-2-carboxylic acid methyl esterHCID 5416565381%

Reaction Steps

Oxindole (105 mg, 0.79 mmol) was condensed with 5-formyl-4-methyl-1H-pyrrole-2-carboxylic acid methyl ester (110 mg, 0.67 mmol) using method E to give 153.2 mg (81%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06797725B2
Source datasetuspto-grants-2004_09
ORD IDord-e68e3421dadf49c58127f60020647d12
Source noteuspto-grants-2004_09