3-Methyl-2-thiophenecarboxaldehyde → 3-[(3-Methylthien-2-yl)methylene]-2-indolinone
Reaktionsgleichung
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH2:3][C:2]1=[O:10].[CH3:11][C:12]1[CH:16]=[CH:15][S:14][C:13]=1[CH:17]=O>N1CCCCC1.C(O)C>[CH3:11][C:12]1[CH:16]=[CH:15][S:14][C:13]=1[CH:17]=[C:3]1[C:4]2[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=2)[NH:1][C:2]1=[O:10]Komponenten
5
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Reaktionsbedingungen
- Temperatur
- 90 °C
Versuchsvorschrift
A reaction mixture of 134.0 mg of oxindole, 151.4 mg of the 3-methylthiophene-2-carboxaldehyde, and 3 drops of piperidine in 2 mL of ethanol was stirred at 90° C. for 3 h. After cooling, the precipitate was filtered, washed with cold ethanol, and dried to yield 157.8 mg (65%) of the title compound as a yellow solid.
Aufarbeitung
- temperatureAfter cooling
- filtrationthe precipitate was filtered
- washwashed with cold ethanol
- customdried
Quellen und Nachweise
- ORD-Eintrag
- ord-b5c441b79e5d4e58b41aea2408667a29
- Quelldatensatz
- uspto-grants-2002_10
- Patentnummer
- US06469032B2
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