反应详情

An aqueous solution (5 ml) of sodium dihydrogenphosphate (1.06 g, 8.86 mmol), an aqueous solution (7 ml) of sodium chlorite (0.460 g, 5.11 mmol) and aqueous hydrogen peroxide (0.502 ml, 30%) were added to an acetonitrile solution (10 ml) of 5-(3,4,5,6-tetramethoxy-2-methylbenzyl)-2-methoxybenzaldehyde (0.409 g, 1.14 mmol) and the resulting solution was stirred at room temperature for 5 hours. The reaction solution was diluted with water and then extracted with ethyl acetate. The extract was washed with an aqueous saturated sodium hydrosulfite (Na2S2O4) solution and saturated brine, then dried and concentrated. The obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1) to obtain the titled compound (0.260 g, 0.691 mmol, 61%).

1. extractionextracted with ethyl acetate
2. washThe extract was washed with an aqueous saturated sodium hydrosulfite (Na2S2O4) solution and saturated brine
3. customdried
4. concentrationconcentrated
5. customThe obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1)