Reaktionsgleichung
[S:1]1[CH:5]=[C:4]([C:6]([OH:8])=O)[C:3]([C:9]([OH:11])=[O:10])=[CH:2]1>C(OC(=O)C)(=O)C>[S:1]1[CH:2]=[C:3]2[C:9]([O:11][C:6](=[O:8])[C:4]2=[CH:5]1)=[O:10]Komponenten
3
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Thiophene-3,4-dicarboxylic acid (12 g, 0.07 mol) is dissolved in acetic anhydride (60 ml) and heated at the boil for 2.5 hours. The mixture is then evaporated to dryness. 10.55 g (98%) of thiophene-3,4-dicarboxylic anhydride (mp. 147° to 149° C.) are obtained.
Aufarbeitung
- temperatureheated at the boil for 2.5 hours
- customThe mixture is then evaporated to dryness
Quellen und Nachweise
- ORD-Eintrag
- ord-d9e5436240564df6a2c11da402a92143
- Quelldatensatz
- uspto-grants-1994_01
- Patentnummer
- US05276009
Verknüpfte Notizen
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