Acetic Anhydride → HCID 14881376, Verbindung
Reaktionsgleichung
[C:1]([O:4][C:5](=[O:7])[CH3:6])(=O)[CH3:2].OCC[N:11]1[C:16]([CH3:17])=[C:15]([CH3:18])[N:14]=[C:13]([CH3:19])[C:12]1=[O:20]>N1C=CC=CC=1>[C:5]([O:4][CH2:1][CH2:2][N:11]1[C:16]([CH3:17])=[C:15]([CH3:18])[N:14]=[C:13]([CH3:19])[C:12]1=[O:20])(=[O:7])[CH3:6]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Acetic anhydride (2 ml) was added under ice-cooling to compound 026 (0.91 g, 5 mM) dissolved in pyridine (10 ml), and stirred at room temperature for 1.5 hours. The reaction mixture was concentrated in vacuo and dilute aqueous K2CO3 was added thereto, the resultant mixture being extracted three times with chloroform. The extract was dried with anhydrous magnesium sulfate and concentrated in vacuo. The residue was charged on a column of silica-gel (Florisil, 60 g) packed with benzene and eluted with benzene-ethyl acetate (5:1) to obtain compound 061 (0.58 g, yield: 51.8%).