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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 347961Generated: October 25, 2026

Acetic Anhydride → 1-Acetyl-5-isobutyryl-3-(ethoxy-phenyl-methylidene)-2-indolinone

https://huagongshe.com/reaction/347961

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantBenzene, (triethoxymethyl)-HCID 74268—
Reactant5-IsobutyryloxindoleHCID 21084646—
SolventCyclohexane ethyl acetate methanolHCID 22064753—
Product1-Acetyl-5-isobutyryl-3-(ethoxy-phenyl-methylidene)-2-indolinoneHCID 68995758—

Reaction Steps

Prepared from 5-isobutyryl-2-indolinone, acetic anhydride and triethyl orthobenzoate Rf=0.55 (silica gel, ethyl acetate/cyclohexane/methanol 9:9:2)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07176231B2
Source datasetuspto-grants-2007_02
ORD IDord-316ac5a9490846f384ba25ac601e1cdc
Source noteuspto-grants-2007_02