Hydrogen Bromide → 1-Bromo-2,6,10-trimethylundecane
Reaktionsgleichung
[CH3:1][CH:2]([CH2:5][CH2:6][CH2:7][CH:8]([CH3:15])[CH2:9][CH2:10][CH2:11][CH:12]([CH3:14])[CH3:13])[CH2:3]O.[BrH:16]>>[Br:16][CH2:3][CH:2]([CH3:1])[CH2:5][CH2:6][CH2:7][CH:8]([CH3:15])[CH2:9][CH2:10][CH2:11][CH:12]([CH3:14])[CH3:13]Komponenten
3
Versuchsvorschrift
A 21.44 g (0.10 mol) portion of (±)-2,6,10-trimethylundecan-1-ol was stirred and heated to 140°C as HBr gas was bubbled through the liquid for 4.0 hr. The two-phase mixture was cooled, diluted with petroleum ether (B.P. 30°-60°C) and washed with H2O, saturated aqueous NaHCO3 solution and brine. The solution was filtered through 100 g of Woelm neutral alumina III, stripped of solvent, and distilled to give (±)-1-bromo-2,6,10-trimethylundecane as a colorless liquid: bp 97°-99°C/0.10 mmHg.
Aufarbeitung
- customwas bubbled through the liquid for 4.0 hr
- temperatureThe two-phase mixture was cooled
- additiondiluted with petroleum ether (B.P. 30°-60°C)
- washwashed with H2O, saturated aqueous NaHCO3 solution and brine