Trimethyl orthoformate → 1,1-Dimethoxy-8-methylnon-2-yne
Reaktionsgleichung
[CH3:1][CH:2]([CH3:11])[CH2:3][CH2:4][CH2:5][CH2:6][C:7]#[C:8]C=O.[CH3:12][O:13][CH:14](OC)[O:15][CH3:16]>>[CH3:12][O:13][CH:14]([O:15][CH3:16])[C:8]#[C:7][CH2:6][CH2:5][CH2:4][CH2:3][CH:2]([CH3:11])[CH3:1]Komponenten
3
Versuchsvorschrift
One gm. (0.007 mole) of 8-methylnon-2-yn-1-al, 10 gm. (0.1 mole) of trimethylorthoformate and 0.2 g of para-toluene-sulfuric acid were distilled. Methyl formate and methyl alcohol were collected. The solution was diluted with 15 ml of water and extracted with ether. The ether solution was washed with 5% sodium bicarbonate, and then water. The ether extract was dried over sodium sulfate, concentrate and distilled under vacuum to give 1,1-dimethoxy-8-methyl-non-2-yne.
Aufarbeitung
- customMethyl formate and methyl alcohol were collected
- additionThe solution was diluted with 15 ml of water
- extractionextracted with ether
- washThe ether solution was washed with 5% sodium bicarbonate
- extraction