反应详情

To solution of N-(6-formylpyridin-2-yl)-2,2-dimethylpropanamide (3.0 g, 14.9 mmol) in methanol (10 mL) was added sodium borohydride (1.37 g, 37.1 mmol) and stirred for 3 hours. The mixture diluted with ethyl acetate (50 mL). The mixture was washed with aqueous hydrochloric acid (2×30 mL, 0.1 N) and saturated sodium bicarbonate (2×50 mL). The organic layer was dried over anhydrous Na2SO4, filtered, and concentrated to afford the above-titled intermediate as a white solid (2.49 g, 80%). 1H NMR (400 MHz, CDCl3), δ: 8.16 (d, J=8.3 Hz, 1H), 8.00 (br s, 1H), 7.71 (t, J=7.8 Hz, 1H), 7.12 (d, J=7.5 Hz, 1H), 4.05-3.96 (m, 2H), 1.35 (s, 9H); LRMS (ESI): m/z: 209.2.

1. washThe mixture was washed with aqueous hydrochloric acid (2×30 mL, 0.1 N) and saturated sodium bicarbonate (2×50 mL)
2. dry with materialThe organic layer was dried over anhydrous Na2SO4
3. filtrationfiltered
4. concentrationconcentrated