反应详情

温度

70 °C

Methyl 5-({4-[(4-butylphenyl)ethynyl]benzyl}amino)-2-fluorobenzoate (800 mg, 1.93 mmol) was dissolved in DCE (15 mL), then 3,3-dimethyl-butyraldehyde (289 mg, 2.89 mmol) was added followed by sodium triacetoxyborohydride (Aldrich, 1224 mg, 5.78 mmol) and the resulting mixture stirred at 70° C. for 2 h. Reaction was allowed to cool down, dichloromethane (40 mL) was added and the organic layer was washed twice with H2O and once with brine, dried over MgSO4, filtered and concentrated under reduced pressure. Purification on silicagel afforded 541 mg (56%) of the title compound as a colorless oil. HPLC, Rt: 6.42 min, purity: 98.3%); LC/MS, M+(ESI): 500.4; 1H NMR (CDCl3) δ: 7.44 (m, 4H), 7.17 (m, 5H), 6.93 (t, J=9.6 Hz, 1H), 6.73 (m, 1H), 4.46 (s, 2H), 3.88 (s, 3H), 3.40 (m, 2H), 2.60 (t, J=7.7 Hz, 2H), 1.70-1.46 (m, 4H), 1.34 (m, 2H), 0.99-0.87 (m, 12H).

1. customReaction
2. temperatureto cool down
3. washthe organic layer was washed twice with H2O and once with brine
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure
7. customPurification on silicagel