3-Hydroxybenzaldehyde → 3-[[5-(Acetyloxy)pentyl]oxy]benzaldehyde

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A mixture of 1.22 g (10 mmol) of 3-hydroxybenzaldehyde, 2.3 g (11 mmol) of 5-bromopentyl acetate, 3.82 g (27.7 mmol) of anhydrous, granular potassium carbonate, and 25 mL of dimethyl sulfoxide was stirred at room temperature for 20 hr. The resulting brown slurry was diluted with ether and washed with water and saturated brine. Completion of the usual work-up gave 2.59 g (100%) of 3-[[5-(acetyloxy)pentyl]oxy]benzaldehyde as a yellow oil which was used without further purification.

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