[CH3:1][O:2][C:3]1[C:8]([C:9]([F:12])([F:11])[F:10])=[CH:7][C:6](/[CH:13]=[CH:14]\[C:15]([O:17][CH2:18][CH3:19])=[O:16])=[CH:5][C:4]=1[C:20]([F:23])([F:22])[F:21]>[C].[Pd].CO>[CH3:1][O:2][C:3]1[C:4]([C:20]([F:21])([F:22])[F:23])=[CH:5][C:6]([CH2:13][CH2:14][C:15]([O:17][CH2:18][CH3:19])=[O:16])=[CH:7][C:8]=1[C:9]([F:10])([F:12])[F:11]Into a 50-mL round-bottom flask, was placed ethyl (2Z)-3-[4-methoxy-3,5-bis(trifluoromethyl)phenyl]prop-2-enoate (280 mg, 0.82 mmol, 1.00 equiv), Palladium carbon (0.28 g), methanol (10 mL). The mixture was subjected to 2 atm of H2 and stirred overnight at 25° C. The reaction progress was monitored by LCMS. The solids were filtered out. The resulting mixture was concentrated under vacuum. This resulted in 0.28 g (99%) of ethyl 3-[4-methoxy-3,5-bis(trifluoromethyl)phenyl]propanoate as yellow oil. Mass spectrum (ESI, m/z): Calcd. for C14H14F6O3, 345.1 (M+H). found 345.1.
불러오는 중…