Benzyl Bromide → HCID 21919151, Verbindung

Reaktionsgleichung

[CH3:1][O:2][C:3]1[C:4]([CH3:25])=[C:5]([C:16]([O:23][CH3:24])=[C:17]([O:21][CH3:22])[C:18]=1[O:19][CH3:20])[CH2:6][C:7]1[C:8]([OH:15])=[C:9]([CH:12]=[CH:13][CH:14]=1)[CH:10]=[O:11].C(=O)([O-])[O-].[Na+].[Na+].[CH2:32](Br)[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1>CC(C)=O>[CH3:1][O:2][C:3]1[C:4]([CH3:25])=[C:5]([C:16]([O:23][CH3:24])=[C:17]([O:21][CH3:22])[C:18]=1[O:19][CH3:20])[CH2:6][C:7]1[C:8]([O:15][CH2:32][C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)=[C:9]([CH:12]=[CH:13][CH:14]=1)[CH:10]=[O:11]

Komponenten

Versuchsvorschrift

3-(3,4,5,6-Tetramethoxy-2-methylbenzyl)-2-hydroxybenzaldehyde (1.16 g, 3.35 mol) was dissolved in acetone (5 ml) and after adding thereto anhydrous sodium carbonate (1.02 g, 7.38 mmol) and benzyl bromide (0.69 g, 4.02 mmol), the solution was refluxed under heating for 3 hours. The reaction solution was filtered, the filtrate was concentrated and the obtained residue was purified by silica gel column chromatography (hexand:ethyl acetate=2:1) to obtain the titled compound (1.45 g, 3.32 mmol, 99%).