Water → 2-(3-Hydroxypropyl)-2-phenyl-1,3-dioxolane

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To a solution of 1.7 g of the ester compound obtained in 20 ml of dry diethyl ether was added 0.7 g of lithium aluminum hydride under ice-cooling, the mixture was stirred for 1 hour at 0° C., and then heated under reflux for 17 hours. After cooling, the reaction mixture was treated successively with an aqueous diethyl ether solution and water, and the precipitate was filtered off. The filtrate was dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel flash column chromatography (eluent: benzene/ethyl acetate=10/1 by volume) to obtain 1.3 g of 4,4-ethylenedioxy-4-phenylbutyl alcohol.

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