[F:1][C:2]([F:10])([F:9])[C:3]([CH3:8])([CH3:7])[C:4]([OH:6])=[O:5].Br[CH2:12][C:13]1[CH:22]=[CH:21][C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:14]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.CCOC(C)=O>[F:1][C:2]([F:10])([F:9])[C:3]([CH3:8])([CH3:7])[C:4]([O:6][CH2:12][C:13]1[CH:22]=[CH:21][C:20]2[C:15](=[CH:16][CH:17]=[CH:18][CH:19]=2)[CH:14]=1)=[O:5]A mixture of 3,3,3-trifluoro-2,2-dimethylpropanoic acid (2.96 g, 19.0 mmol), 2-(bromomethyl)naphthalene (4.19 g, 19.0 mmol), and potassium carbonate (7.86 g, 56.9 mmol) in 50 ml of anhydrous DMF was stirred at 30° C. overnight. Diluted with 150 ml of EtOAc, washed with 150 ml of H2O, 2×100 ml of 1N NaOH, 2×100 ml of 1N HCl, dried (Na2SO4) and concentrated to give an oil that was purified by ISCO using EtOAc in hexanes (5%) as eluents to provide the title compound as an oil.
Wird geladen…