反应详情

Following the same procedure described for the preparation of ethyl(6-chloro-2-pyridinyl)acetate (Example 469) and starting from 6-chloro-2,3dimethylpyridine (0.35 g, 2.5 mmol), LDA (5.17 mmol), and diethyl carbonate (0.75 mL, 6.2 mmol) in THF (10 mL), the title compound was obtained (0.15 g, 29%) as a yellow oil. 1H NMR (400 MHz, CDCl3): δ 7.42 (d, 1H), 7.15 (d, 1H), 4.18 (q, 2H), 3.84 (s, 2H), 2.29 (s, 3H), 1.27 (t, 3H); LC-MS: RT=2.30 min, (M+H)+ 214.2.