1,2,3,4-Cyclobutanetetracarboxylic Acid → 1,2,3,4-Cyclobutanetetracarboxylic dianhydride

HRID 749626Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 749626
[CH:1]1([C:14]([OH:16])=[O:15])[CH:4]([C:5]([OH:7])=O)[CH:3]([C:8]([OH:10])=O)[CH:2]1[C:11]([OH:13])=[O:12]>C(OC(=O)C)(=O)C>[CH:1]12[C:14](=[O:15])[O:16][C:5](=[O:7])[CH:4]1[CH:3]1[C:8](=[O:10])[O:12][C:11](=[O:13])[CH:2]12

Komponenten

3

Edukt 1

HCID 2660341,2,3,4-Cyclobutanetetracarboxylic Acid

Produkt 1

HCID 1072801,2,3,4-Cyclobutanetetracarboxylic dianhydrideAusbeute 135,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7918Acetic AnhydrideLösungsmittel

Versuchsvorschrift

The cyclobutane-1,2,3,4-tetracarboxylic acid (501 g, 2.16 mol) and acetic anhydride (3000 ml) were added to a 5-liter flask and reacted at a controlled temperature of 150° C. for 24 hours. The reaction was cooled to room temperature; concentrated; and dried to obtain 1,2,3,4-cyclobutanetetracarboxylic dianhydride (573 g, 2.93 mol).

Aufarbeitung

  1. customreacted at a controlled temperature of 150° C. for 24 hours
  2. concentrationconcentrated
  3. customand dried

Quellen und Nachweise

ORD-Eintrag
ord-274db99385e444e78b011dc173834366
Quelldatensatz
uspto-grants-2008_07
Patentnummer
US07402693B2

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