Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 24443Generated: October 27, 2026

2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid → 3-(3,5-diisopropyl-4-methoxybenzylidene)-2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid

https://huagongshe.com/reaction/24443

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-oxo-2,3-dihydro-1H-indole-4-carboxylic acidHCID 10397329—
Reactant3,5-Diisopropyl-4-methoxybenzaldehydeHCID 10585025—
Product3-(3,5-diisopropyl-4-methoxybenzylidene)-2-oxo-2,3-dihydro-1H-indole-4-carboxylic acidHCID 53939242—

Reaction Steps

3,5-Diisopropyl-4-methoxybenzaldehyde was condensed with 4-carboxy-2-oxindole to give 0.3 g of 3-(3,5-diisopropyl-4-methoxybenzylidene)-2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid as a yellow-orange solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06855730B2
Source datasetuspto-grants-2005_02
ORD IDord-891be8e7bd4249dda69ef633b578898c
Source noteuspto-grants-2005_02