Reaktionsgleichung
[CH:1]1[C:6]([NH2:7])=[CH:5][CH:4]=[C:3]([O:8][C:9]2[CH:10]=[CH:11][C:12]([NH2:15])=[CH:13][CH:14]=2)[CH:2]=1.[C:16](OC(=O)C)(=[O:18])[CH3:17].[C:23](O)(=[O:25])[CH3:24]>>[CH3:17][C:16]([NH:15][C:12]1[CH:13]=[CH:14][C:9]([O:8][C:3]2[CH:2]=[CH:1][C:6]([NH:7][C:23]([CH3:24])=[O:25])=[CH:5][CH:4]=2)=[CH:10][CH:11]=1)=[O:18]Komponenten
4
Versuchsvorschrift
To a 70° C. solution of 25 grams (0.125 mole) of 4,4′-diaminodiphenyl ether in 90 ml of glacial acetic acid was added 28.55 ml (0.286 mole) of acetic anhydride. The acetic anhydride was added dropwise at such a rate and with heating to maintain a temperature between 90° C. and 100° C. After the addition of acetic anhydride, the temperature was maintained between 90° C. and 100° C. for an additional hour. The reaction mixture was further reacted at room temperature overnight forming a precipitate. The mixture was filtered, and the collected precipitate dried at room temperature to give 32.6 grams of 4,4′-diacetamidodiphenyl ether, m.p. 228-230° C. (lit. m.p. 228-229° C.). The yield was 91.8% of the theoretical amount.
Aufarbeitung
- temperaturewith heating
- temperatureto maintain a temperature between 90° C. and 100° C
- temperaturethe temperature was maintained between 90° C. and 100° C. for an additional hour
- customThe reaction mixture was further reacted at room temperature overnight
- customforming a precipitate
- filtrationThe mixture was filtered
- customthe collected precipitate dried at room temperature
Quellen und Nachweise
- ORD-Eintrag
- ord-294224a5babf40d7b25011b1e4be3f60
- Quelldatensatz
- uspto-grants-2003_05
- Patentnummer
- US06569598B2
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