反应详情

2-[2-(3-Methoxyphenoxy)phenyl]-1,3-dioxolane (32.7 g; 0.12 mol) was stirred in a mixture of water (95 ml) and concentrated hydrochloric acid (5 ml) at ambient temperature for 19 hours. The mixture was extracted with ether (2×60 ml) and the combined ether extracts were washed with saturated aqueous sodium bicarbonate solution (30 ml), water (3×30 ml) and saturated brine (30 ml). The resulting solution was dried, filtered and concentrated to give almost pure 2-(3-methoxyphenoxy)benzaldehyde (A) (26.17 g, 95.4% yield) as an oil. This material was used without purification for the following step. However, an analytical sample was prepared by chromatography using a mixture of ether and hexane as eluant to give an amber oil.

1. extractionThe mixture was extracted with ether (2×60 ml)
2. washthe combined ether extracts were washed with saturated aqueous sodium bicarbonate solution (30 ml), water (3×30 ml) and saturated brine (30 ml)
3. customThe resulting solution was dried
4. filtrationfiltered
5. concentrationconcentrated