反应详情

温度

55 °C

A 50-mL round bottom flask was charged with methyl 2-(4-((2-(3-chlorophenyl)-6-(trifluoromethyl)pyridin-4-yl)methyl)phenyl)acetate (0.165 g, 0.40 mmol) and THF (10 mL) at rt. Borane-dimethylsulfide complex (0.154 mL, 1.62 mmol) was added and the resulting solution was stirred at 55° C. for 3 h. After this time, the reaction was quenched with methanol then treated with 2N aqueous HCl (5 drops), and concentrated under reduced pressure. The residue was diluted with methanol and then concentrated under reduced pressure. The residue was purified by column chromatography on silica using hexanes/ethyl acetate (10:0 to 1:1) as the eluent followed by column chromatography on silica using hexanes/dichloromethane (10:0 to 0:10) as the eluent to afford the title compound (0.064 g, 18%) as a colorless gum. MW=391.81. 1H NMR (DMSO-d6, 500 MHz) δ 8.33 (s, 1H), 8.17-8.15 (m, 1H), 8.11-8.06 (m, 1H), 7.77 (d, J=0.5 Hz, 1H), 7.60-7.54 (m, 2H), 7.28 (d, J=8.0 Hz, 2H), 7.16 (d, J=8.0 Hz, 2H), 4.58 (t, J=5.0 Hz, 1H), 4.12 (s, 2H), 3.59-3.54 (m, 2H), 2.67 (t, J=5.0 Hz, 2H); APCI MS m/z 392 [M+H]+.

1. additionBorane-dimethylsulfide complex (0.154 mL, 1.62 mmol) was added
2. customAfter this time, the reaction was quenched with methanol
3. additionthen treated with 2N aqueous HCl (5 drops)
4. concentrationconcentrated under reduced pressure
5. additionThe residue was diluted with methanol
6. concentrationconcentrated under reduced pressure
7. customThe residue was purified by column chromatography on silica