反应详情

To a solution of 1-(2-(trifluoromethyl)phenyl)cyclopentanol (5.1 g, 22.15 mmol) in ethanol (32 mL) was added 10% Pd—C (500 mg; Degussa; wet) and the mixture was hydrogenated overnight with a hydrogen balloon. The reaction mixture was filtered through Celite®. The filtrate was poured into ice-water (100 mL) and extracted with CH2Cl2 (2×70 mL). The combined CH2Cl2 layer was washed with water (1×75 mL), dried over Na2SO4, filtered and the solvent was removed under reduced pressure to give the title compound (4.3 g). 1H NMR (400 MHz, CDCl3) δ ppm 1.58-1.67 (m, 4H), 1.81-1.90 (m, 2H), 2.06-2.15 (m, 2H), 3.32-3.43 (m, 1H), 7.22-7.26 (m, 1H), 7.45-7.51 (m, 2H), 7.58 (d, J=8 Hz, 1H).

1. filtrationThe reaction mixture was filtered through Celite®
2. additionThe filtrate was poured into ice-water (100 mL)
3. extractionextracted with CH2Cl2 (2×70 mL)
4. washThe combined CH2Cl2 layer was washed with water (1×75 mL)
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. customthe solvent was removed under reduced pressure