Ammonia → HCID 18783143, Verbindung
Reaktionsgleichung
[CH3:1][C:2]1(O)[CH2:7][C:6]([CH3:9])([CH3:8])[CH2:5][C:4]([CH3:11])([CH3:10])[CH2:3]1.[OH2:13].N.[C:15](#[N:17])[CH3:16]>>[C:15]([NH:17][C:2]1([CH3:1])[CH2:7][C:6]([CH3:9])([CH3:8])[CH2:5][C:4]([CH3:11])([CH3:10])[CH2:3]1)(=[O:13])[CH3:16]Komponenten
5
Reaktionsbedingungen
- Temperatur
- -50 °C
Versuchsvorschrift
To a vigorously stirred solution of 1,3,3,5,5-pentamethylcyclohexanol (3-13) (3.0 g, 17.65 mmol) in acetonitrile (20 ml) fuming HNO3 (6ml) was added dropwise, keeping temperature below 45° C. The resulting mixture was stirred at -50° C. for 6 h, then it was cooled, poured into water (30 ml) ana neutralised with aqueous NH3. Aqueous phase was extracted with ether (3*30 ml). The combined ether phases were washed with saline (30 ml), then dried over MgSO4, filtered and evaporated. The crude product was crystallised from cold acetonitrile to give 223 g (60%) of 14-2 as a white crystals, m.p. 110° C.