Sodium borohydride → HCID 71060655, Verbindung
Reaktionsgleichung
[CH2:1]([O:3][C:4]([C:6]1([CH:19]([C:24]2[CH:25]=[N:26][CH:27]=[CH:28][CH:29]=2)[CH2:20][N+:21]([O-])=O)[CH2:11][CH2:10][CH2:9][N:8]([C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])[CH2:7]1)=[O:5])[CH3:2].[BH4-].[Na+]>CO.O.O.O.O.O.O.[Ni](Cl)Cl>[CH2:1]([O:3][C:4]([C:6]1([CH:19]([C:24]2[CH:25]=[N:26][CH:27]=[CH:28][CH:29]=2)[CH2:20][NH2:21])[CH2:11][CH2:10][CH2:9][N:8]([C:12]([O:14][C:15]([CH3:18])([CH3:16])[CH3:17])=[O:13])[CH2:7]1)=[O:5])[CH3:2]Komponenten
5
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
To a solution of 3-(2-Nitro-1-pyridin-3-yl-ethyl)piperidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-ethyl ester (2.92 g, 7.17 mmol) in MeOH (60 ml) was added nickel chloride hexahydrate (1.70 g, 7.17 mmol) and the mixture was cooled in an ice bath. Sodium borohydride (1.08 g, 28.7 mmol) was portionwise added over 30 minutes and the resulting suspension was stirred for further 30 minutes at 0° C. The reaction was quenched with saturated NH4Cl solution (30 ml) and MeOH was removed in vacuo. The aqueous residue was extracted with EtOAc (2×50 ml) and DCM (2×50 ml). The combined organic extracts were dried (MgSO4) and concentrated in vacuo to afford the title compound which was used without further purification.
Aufarbeitung
- temperaturethe mixture was cooled in an ice bath
- customThe reaction was quenched with saturated NH4Cl solution (30 ml) and MeOH
- customwas removed in vacuo
- extractionThe aqueous residue was extracted with EtOAc (2×50 ml) and DCM (2×50 ml)
- dry with materialThe combined organic extracts were dried (MgSO4)
- concentrationconcentrated in vacuo
Quellen und Nachweise
- ORD-Eintrag
- ord-90e0f6b24ce448d680f4bcfe663dea0d
- Quelldatensatz
- uspto-grants-2013_10
- Patentnummer
- US08546416B2
Notizen zur Reaktion
Wird geladen…