Ethylenediamine → HCID 2990663, Verbindung
Reaktionsgleichung
Br[C:2]1[CH:16]=[CH:15][C:5]([C:6]([NH:8][CH:9]2[CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]2)=[O:7])=[C:4]([F:17])[CH:3]=1.[Cu](C#N)[C:19]#[N:20].C(N)CN>CN(C=O)C>[C:19]([C:2]1[CH:16]=[CH:15][C:5]([C:6]([NH:8][CH:9]2[CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]2)=[O:7])=[C:4]([F:17])[CH:3]=1)#[N:20]Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Heat a mixture of 4-bromo-N-cyclohexyl-2-fluoro-benzamide (1.24 g, 4.13 mmol) and copper cyanide (740 mg, 8.26 mmol) in DMF (20 mL) to reflux for 16 h. Cool the mixture to ambient temperature, add aqueous ethylenediamine and stir for 30 min. Extract the mixture with hexane/EtOAc (1:1), dry the organic layer over Na2SO4, filter and concentrate in vacuo. Purify the residue by chromatography on silica gel eluting with hexane/EtOAc (5:1) to give the desired intermediate as a white solid (620 mg, 61%). MS (ES−) m/z: 245 (M−H)−.
Aufarbeitung
- temperatureHeat
- temperatureto reflux for 16 h
- extractionExtract the mixture with hexane/EtOAc (1:1)
- dry with materialdry the organic layer over Na2SO4
- filtrationfilter
- concentrationconcentrate in vacuo
- customPurify the residue by chromatography on silica gel eluting with hexane/EtOAc (5:1)
Quellen und Nachweise
- ORD-Eintrag
- ord-d7e636df9bde4dad8c4e8fad74972d92
- Quelldatensatz
- uspto-grants-2013_11
- Patentnummer
- US08580780B2
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