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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 347965Generated: October 25, 2026

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

https://huagongshe.com/reaction/347965

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantBenzene, (triethoxymethyl)-HCID 74268—
Reactant5-Butyryl-2-indolinoneHCID 23559378—
SolventCyclohexane ethyl acetate methanolHCID 22064753—
Product1-Acetyl-5-butyryl-3-(ethoxy-phenyl-methylidene)-2-indolinoneHCID 68993053—

Reaction Steps

Prepared from 5-butyryl-2-indolinone, acetic anhydride and triethyl orthobenzoate Rf=0.79 (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-7adcd71479ae4f8eb53b3e2dd51dca2d
Source noteuspto-grants-2007_02