[C:1]([C:3]1[CH:4]=[CH:5][C:6]([C:19]([F:22])([F:21])[F:20])=[C:7]([CH:18]=1)[C:8]([O:10]CC1C=CC=CC=1)=[O:9])#[N:2].[H][H]>[Pd].CO>[NH2:2][CH2:1][C:3]1[CH:4]=[CH:5][C:6]([C:19]([F:20])([F:21])[F:22])=[C:7]([CH:18]=1)[C:8]([OH:10])=[O:9]Combine benzyl 5-cyano-2-(trifluoromethyl)benzoate (3.9 g, 12.78 mmol, 1.0 equiv), palladium (10 wt % on carbon, 400 mg, 0.38 mmol, 0.03 equiv), and methanol (128 mL), and purge the mixture with hydrogen. Stir overnight under a hydrogen atmosphere. Filter the mixture through a pad of diatomaceous earth, and then rinse the pad with hot methanol (3×150 mL) to bring through precipitated product. Concentrate the filtrate under reduced pressure to give the title compound (1.4 g, 50%). MS (m/z) 220 (M+1).
Wird geladen…
