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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2051663Generated: October 29, 2026

p-Toluenesulfonic acid → [5-Methoxy-2-methyl-1-(4-nitrobenzoyl)-1H-indol-3-yl]acetic acid

https://huagongshe.com/reaction/2051663

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantHCID 20379446HCID 20379446—
SolventAcetic AcidHCID 176—
Product[5-Methoxy-2-methyl-1-(4-nitrobenzoyl)-1H-indol-3-yl]acetic acidHCID 12845005—

Reaction Steps

A solution of 4.9 g (12.8 mmol) of methyl-1-(p-nitrobenzoyl)-5-methoxy-2-methyl-3-indolylacetate in 40 ml of acetic acid containing 400 mg of p-toluene-sulfonic acid is refluxed for 20 hours and then concentrated in vacuo. p The gummy residue is extracted with ethyl acetate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04181740
Source datasetuspto-grants-1980_01
ORD IDord-ec2613ae136d49028be3f35a3a910d7c
Source noteuspto-grants-1980_01