Ethanol → HCID 13656010, Verbindung

Reaktionsgleichung

[CH3:1][Si:2]([CH3:12])([CH3:11])[C:3]#[C:4][CH2:5][CH2:6][CH2:7][C:8]([OH:10])=[O:9].[CH2:13](O)[CH3:14].N1C=CC=CC=1>O1CCCC1>[CH3:12][Si:2]([CH3:1])([CH3:11])[C:3]#[C:4][CH2:5][CH2:6][CH2:7][C:8]([O:10][CH2:13][CH3:14])=[O:9]

Komponenten

Versuchsvorschrift

To a solution of 5.3 gm of 1,1-carbonyldiimidazole in 80 ml of dry tetrahydrofuran under argon, was added a solution of 5.03 gm of 6-trimethylsilyl-5-hexynoic acid in 15 ml of dry tetrahydrofuran. The mixture was stirred for 1 hour. Absolute ethanol (80 ml) and pyridine (1 ml) were then added, and the resulting mixture was stirred at room temperature for 48 hours. The solvent was evaporated and the residual oil was extracted with ether and 1.5% hydrochloric acid. The ethereal layer, which was washed with water and then dried, was evaporated to an oil. This material was purified by distillation, b.p. 70°-75° C. (0.6 mm Hg); IR: 2170, 1735 cm-1.