Diethylenetriaminepentaacetic acid → DTPA dianhydride

HRID 41801

Reaktionsgleichung

Reaktionsgleichung von HRID 41801
[CH2:1]([N:12]([CH2:24][C:25]([OH:27])=[O:26])[CH2:13][CH2:14][N:15]([CH2:20][C:21]([OH:23])=O)[CH2:16][C:17]([OH:19])=[O:18])[CH2:2][N:3]([CH2:8][C:9]([OH:11])=[O:10])[CH2:4][C:5]([OH:7])=O.C(OC(=O)C)(=O)C>N1C=CC=CC=1>[CH2:20]1[N:15]([CH2:14][CH2:13][N:12]([CH2:24][C:25]([OH:27])=[O:26])[CH2:1][CH2:2][N:3]2[CH2:8][C:9](=[O:10])[O:11][C:5](=[O:7])[CH2:4]2)[CH2:16][C:17](=[O:19])[O:18][C:21]1=[O:23]

Komponenten

4

Edukt 2

HCID 3053Diethylenetriaminepentaacetic acidHCID 7918Acetic Anhydride

Produkt 1

HCID 100825DTPA dianhydride

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1049PyridineLösungsmittel

Versuchsvorschrift

1.08 gram of DTPA (2.7 mmol), 2 mL acetic anhydride and 1.3 mL pyridine were stirred for 48 hours at 60° C. and then the reaction mixture was filtered at room temperature. The solid product washed to be free of pyridine with acetic anhydride and then with diethyl ether, and is dried.

Aufarbeitung

  1. filtrationthe reaction mixture was filtered at room temperature
  2. washThe solid product washed
  3. dry with materialwith diethyl ether, and is dried

Quellen und Nachweise

ORD-Eintrag
ord-c95a531273a7400eacd53b7c1e81426f
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08532742B2

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