Methyl 4-{[2-oxodihydro-3(2H)-furanylidene]methyl}benzoate → Methyl 4-[(2-oxotetrahydro-3-furanyl)methyl]benzoate
Reaction equation
[O:1]=[C:2]1[C:6](=[CH:7][C:8]2[CH:17]=[CH:16][C:11]([C:12]([O:14][CH3:15])=[O:13])=[CH:10][CH:9]=2)[CH2:5][CH2:4][O:3]1>C(O)(=O)C.[C].[Pd]>[O:1]=[C:2]1[CH:6]([CH2:7][C:8]2[CH:17]=[CH:16][C:11]([C:12]([O:14][CH3:15])=[O:13])=[CH:10][CH:9]=2)[CH2:5][CH2:4][O:3]1Participants
4
Procedure
20.00 g (0.09 mol) of methyl 4-([2-oxodihydro-3(2H)-furanylidene]methyl)benzoate from Ex. V are suspended in 240 ml of glacial acetic acid, 2.00 g of 10% palladium-carbon are added and the mixture is hydrogenated at atmospheric pressure for 4 hours. The reaction mixture is filtered through kieselguhr and the solvent is distilled off under reduced pressure.