Reaktionsgleichung
C(#N)C.[N+:4]([C:7]1[CH:12]=[CH:11][C:10]([NH:13][NH2:14])=[CH:9][CH:8]=1)([O-:6])=[O:5].[CH:15](O)=[O:16]>>[CH:15]([NH:14][NH:13][C:10]1[CH:9]=[CH:8][C:7]([N+:4]([O-:6])=[O:5])=[CH:12][CH:11]=1)=[O:16]Komponenten
4
Versuchsvorschrift
Then, according to the method described in Japanese Patent Application (OPI) No. 74729/79, 1-formyl-2-(4-aminophenyl)hydrazine was produced. That is, to 1.6 liters of acetonitrile was added 45 g of 4-nitrophenylhydrazine and then 322 g of formic acid was gradually added to the mixture with stirring, whereby a homogeneous solution was obtained. After 20 minutes, crystals began to deposit. After further performing the reaction for 2 hours at an inside temperature of 80° C., the reaction mixture was cooled and crystals thus formed were collected by filtration, washed with acetonitrile and dried to provide 495 g of 1-formyl-2-(4-nitrophenyl)hydrazine having a melting point of 184°-186° C.
Aufarbeitung
- customwhereby a homogeneous solution was obtained
- customthe reaction for 2 hours at an inside temperature of 80° C.
- temperaturethe reaction mixture was cooled
- customcrystals thus formed
- filtrationwere collected by filtration
- washwashed with acetonitrile
- customdried
Quellen und Nachweise
- ORD-Eintrag
- ord-9cf29610d6714cfc8cdbe34e3ff6f40e
- Quelldatensatz
- uspto-grants-1988_04
- Patentnummer
- US04737452
Verknüpfte Notizen
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