Reaktionsgleichung
[N+:1]([C:4]1[CH:5]=[C:6]([CH:18]=[CH:19][C:20]=1Cl)[C:7]([C:9]1[CH:14]=[CH:13][C:12]([N+:15]([O-])=O)=[CH:11][CH:10]=1)=O)([O-])=O.[H][H].N>[Pd].CCOCCO>[CH:19]1[CH:20]=[C:4]([NH2:1])[CH:5]=[C:6]([CH2:7][C:9]2[CH:14]=[CH:13][C:12]([NH2:15])=[CH:11][CH:10]=2)[CH:18]=1Komponenten
6
Versuchsvorschrift
15.3 g (0.05 mol) of 3,4'-dinitro-4-chlorobenzophenone, 0.75 g of 5% Pd/C and 50 ml of ethyl cellosolve were charged in a closed glass vessel equipped with a thermometer and a stirrer. While stirring the mixture at a temperature of 75° to 80° C., hydrogen was introduced thereinto and 10.3 l (0.46 mol) of hydrogen was absorbed in 13 hours. Since no more absorption of hydrogen was observed, the reaction was terminated at this point. The reaction solution was neutralized with 3.6 g (0.06 mol) of 28% aqueous ammonia. The catalyst was removed by filtration. The filtrate was concentrated to obtain 3,4'-diaminodiphenylmethane as a brown oil. A high performance liquid chromatography revealed that the purity was 88.2%.
Aufarbeitung
- customequipped with a thermometer and a stirrer
- additionwas introduced
- customSince no more absorption of hydrogen
- customthe reaction was terminated at this point
- customThe catalyst was removed by filtration
- concentrationThe filtrate was concentrated
Quellen und Nachweise
- ORD-Eintrag
- ord-c5bfde3dbf194434ab83be76cf615e33
- Quelldatensatz
- uspto-grants-1985_09
- Patentnummer
- US04540818
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