Acetic Anhydride → 1-Acetoxy-3-(1-ethoxy-1-phenylmethylidene)-6-nitro-2-indolinone

HRID 1007389Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1007389
[OH:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([N+:11]([O-:13])=[O:12])[CH:9]=2)[CH2:4][C:3]1=[O:14].[C:15]([O:18][C:19](=O)[CH3:20])(=O)[CH3:16]>CCOC(OCC)(OCC)C1C=CC=CC=1>[C:3]([O:1][N:2]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([N+:11]([O-:13])=[O:12])[CH:9]=2)[C:4](=[C:15]([O:18][CH2:19][CH3:20])[C:16]2[CH:9]=[CH:10][CH:5]=[CH:6][CH:7]=2)[C:3]1=[O:14])(=[O:14])[CH3:4]

Komponenten

4

Versuchsvorschrift

300 mg of 1-hydroxy-6-nitro-2-indolinone are dissolved in 4.0 ml of acetic anhydride and 4.0 ml of triethyl orthobenzoate, stirred for 6 hours at 110° C., concentrated by evaporation and purified through a silica gel column with methylene chloride as eluant.

Aufarbeitung

  1. concentrationconcentrated by evaporation
  2. custompurified through a silica gel column with methylene chloride as eluant

Quellen und Nachweise

ORD-Eintrag
ord-64976dda39f74aff894b2862e4be2aff
Quelldatensatz
uspto-grants-2004_09
Patentnummer
US06794395B1

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