ethyl 4-(3-benzyloxy-5-fluorophenyl)-3,4,5,6-tetrahydro-2H-pyran-4-carboxylate → 4-(3-Fluoro-5-hydroxyphenyl)-3,4,5,6-tetrahydro-2H-pyran-4-carboxylate Ethyl
反応式
C([O:8][C:9]1[CH:10]=[C:11]([C:16]2([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:21][CH2:20][O:19][CH2:18][CH2:17]2)[CH:12]=[C:13]([F:15])[CH:14]=1)C1C=CC=CC=1>[Pd].C(O)C>[F:15][C:13]1[CH:14]=[C:9]([OH:8])[CH:10]=[C:11]([C:16]2([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:17][CH2:18][O:19][CH2:20][CH2:21]2)[CH:12]=1参加物
4
実験手順
A mixture of ethyl 4-[3-(benzyloxy)-5-fluorophenyl]-3,4,5,6-tetrahydro-2H-pyran-4-carboxylate (2.70 g, 7.5 mmol) and 10% palladium on activated carbon (0.27 g) in ethanol (100 ml) was stirred under a hydrogen atmosphere for 3.25 hr. Catalyst was removed by filtration and evaporation of the filtrate gave the titled compound as a colorless liquid (2.01 g, quantitative yield).