反应详情

温度

0 °C

Methyl 2-pyridylacetate (6.81 mL, 50 mmol) was added dropwise to LHMDS (1.0M in THF, 50 mL) and THF (65 mL) cooled to 0° C. After 30 minutes iodomethane (3.97 g, 63.5 mmol) was added to the solution. After stirring for 1 hour at 0° C. the solution was concentrated and the residue was purified by silica gel chromatography using a hexanes/EtOAc gradient to give the indicated product. 1H NMR (400 MHz, CHCl3-d): δ 8.56 (d, J=4.9 Hz, 1H); 7.66 (td, J=7.6, 1.8 Hz, 1H); 7.18 (dd, J=7.6, 4.9 Hz, 1H); 3.96 (q, J=7.2 Hz, 1H); 3.69 (s, 3H). 1.56 (d, J=7.2 Hz, 3H). m/z 166.5 (M+H).

1. concentrationwas concentrated
2. customthe residue was purified by silica gel chromatography
3. customto give the indicated product