C([O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15](=[O:21])[CH2:16][C:17]([O:19][CH3:20])=[O:18])=[CH:11][CH:10]=1)C1C=CC=CC=1.[H][H]>[C].[Pd].C(OCC)(=O)C>[OH:8][C:9]1[CH:10]=[CH:11][C:12]([C:15](=[O:21])[CH2:16][C:17]([O:19][CH3:20])=[O:18])=[CH:13][CH:14]=1To a 50 mL RB flask fitted with magnetic stirrer were charged ethyl acetate (15 mL), to that stirred solvent was added methyl 3-[4-(benzyloxy)phenyl]-3-oxopropanoate (0.3 g, 1.05 mmol), and palladium carbon 10% (80 mg) was added. After addition, the hydrogen balloon was fixed to the reaction mixture and stirred at room temperature for 1 h. After 3 h, the reaction mixture was filtered through celite. Then the organic layer was concentrated and dried. The product was obtained as colourless liquid (0.2 g, Yield: 98%).
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