1,1-Dimethylhydrazine monohydrochloride → 1,3-Dimethyl-5-nitro-1h-indazole
Reaktionsgleichung
Cl[C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][C:3]=1[C:11](=O)[CH3:12].Cl.[CH3:15][N:16](C)[NH2:17]>C(O)C>[CH3:15][N:16]1[C:2]2[C:3](=[CH:4][C:5]([N+:8]([O-:10])=[O:9])=[CH:6][CH:7]=2)[C:11]([CH3:12])=[N:17]1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a solution of 1-(2-chloro-5-nitrophenyl)ethanone (500 mg, 2.5 mmol) in anhydrous ethanol (15 mL) was added 1,1-dimethylhydrazine hydrochloride (3.38 g, 35.0 mmol) under nitrogen protection. The mixture was heated at reflux for 10 h and evaporated under reduced pressure to afford crude 307a (3.0 g), which was used in the next step without further purification. MS-ESI: [M+H]+ 192.2
Aufarbeitung
- temperatureThe mixture was heated
- temperatureat reflux for 10 h
- customevaporated under reduced pressure
Quellen und Nachweise
- ORD-Eintrag
- ord-d6d238392bb4429aa51a53ffd6491e77
- Quelldatensatz
- uspto-grants-2016_01
- Patentnummer
- US09238655B2
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