Aluminium lithium hydride → HCID 12277043, Verbindung
Reaktionsgleichung
[CH3:1]/[C:2](=[CH:9]\[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)/[CH2:3][CH2:4][C:5](OC)=[O:6].[H-].[Al+3].[Li+].[H-].[H-].[H-]>C1COCC1>[CH3:1]/[C:2](=[CH:9]\[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1)/[CH2:3][CH2:4][CH2:5][OH:6]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
A solution of methyl (4E)-4-methyl-5-phenyl-4-pentenoate (3.5 g, 0.016 mol) in dry THF (100 ml) was treated, at −78° C. under nitrogen, with solid lithium aluminum hydride (1 g, 0.025 mol) in one portion. After 5 minutes, the cooling bath was removed and the reaction allowed reaching room temperature and then cooled to 0° C. and treated successively with water (1 ml), 5% aqueous sodium hydroxide (3 ml) and water (1 ml). The reaction was stirred at room temperature for 30 minutes. Anhydrous solid sodium sulfate was added (3 g) and stirring continued for 5 minutes. The solid was filtered off, rinsed with diethyl ether and the filtrate was evaporated under vacuum. The product was purified by bulb-to-bulb distillation (84° C./0.002 mbar). 2.88 g (yield=100%) of the desired product were obtained.