Hydrogen Bromide → 12-Bromododecanoic Acid
Reaktionsgleichung
[C:1]1(=[O:14])[O:13][CH2:12][CH2:11][CH2:10][CH2:9][CH2:8][CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[BrH:15]>>[Br:15][CH2:12][CH2:11][CH2:10][CH2:9][CH2:8][CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2][C:1]([OH:13])=[O:14]Komponenten
3
Versuchsvorschrift
11.9 g (60.0 mmol) of 12-dodecanolide and 24.3 g (96.0 mmol, 1.6 equivalents) of a 32% (hydrogen bromide)/(acetic acid) solution were introduced into a 100-mL autoclave protected with Teflon (registered trademark), and the autoclave was purged with nitrogen and then sealed. The content in the autoclave was stirred with a magnetic stirrer for 16 hours by using an oil bath at 60° C. After cooling the mixture, 14 mL of water was added thereto, and the mixture was transferred into a separatory funnel by using 200 mL of hot hexane. The mixture was washed with ion-exchanged water, dried over magnesium sulfate, filtered, and crystallized from n-hexane. Thus, 14.4 g (yield: 86%) of 12-bromododecanoic acid was obtained.
Aufarbeitung
- customthe autoclave was purged with nitrogen