[CH2:1]([C:8]1[O:12][C:11]([CH:13]2OCC[O:14]2)=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CO.Cl.C(=O)(O)[O-].[Na+]>C(OCC)(=O)C.O1CCCC1>[CH2:1]([C:8]1[O:12][C:11]([CH:13]=[O:14])=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
The resulting 2-(5-benzyl-furan-2-yl)-[1,3]dioxolane (3.8 g, 16.5 mmol) was suspended in a mixture solution of methanol (15 mL), tetrahydrofuran (10 mL) and 2N hydrochloric acid (15 mL), and the solution was stirred at room temperature for 2 hours. Ethyl acetate and an aqueous solution of sodium bicarbonate were added to the reaction solution, which was then partitioned, the organic layer was washed with water twice and dried over anhydrous sodium sulfate. The solvent was evaporated, and the title compound (2.5 g, 13 mmol) was obtained as a brown oil.
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