Stannous chloride dihydrate → 2-(3-Aminophenyl)-2-methylpropanenitrile
Reaktionsgleichung
O.O.[Sn](Cl)Cl.[CH3:6][C:7]([C:11]1[CH:16]=[CH:15][CH:14]=[C:13]([N+:17]([O-])=O)[CH:12]=1)([CH3:10])[C:8]#[N:9]>CCO>[NH2:17][C:13]1[CH:12]=[C:11]([C:7]([CH3:10])([CH3:6])[C:8]#[N:9])[CH:16]=[CH:15][CH:14]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 90 °C
Versuchsvorschrift
To a suspension of tin (II) chloride bis hydrate (3.3 g, 13.1 mmol) in EtOH (25 mL) was added 2-methyl-2-(3-nitrophenyl)propanenitrile (800 mg, 4.2 mmol). The reaction mixture was stirred at 90° C. for 1 h. After cooling down to rt, the solvent was removed under reduced pressure and the residue taken in DCM, washed with water and a saturated solution of sodium hydrogen carbonate until pH=8. After combining, the organics were dried (MgSO4) and concentrated. The residue was purified by silica gel chromatography (hexane/ethyl acetate 15%) to afford 2-(3-aminophenyl)-2-methylpropanenitrile (490 mg, 73%) as a colorless solid. 1H NMR (300 MHz, CDCl3) δ 1.69 (s, 6H), 3.75 (brs, 2H), 6.64 (d, J=9 Hz, 1H), 6.80-6.83 (m, 2H), 7.15-7.19 (m, 1H); LC-MS (ESI) m/z 161 (M+H)+.