反应详情

To a solution of 7-bromo-1-tetralone (1.03 g, 4.58 mmol) in tert-butanol (10 mL) was added sodium iodide (0.131 g, 0.872 mmol) and sodium hydride (0.349 g, 60% suspension in mineral oil, 8.72 mmol). The reaction mixture was stirred at r.t. for 20 min. Then (2-chloroethyl)dimethylsulfonium iodide (Intermediate 5, 1.10 g, 4.36 mmol) was added portionwise over 1 h. After the reaction had reached completion, water (15 mL) was added and the resulting mixture was extracted with EtOAc (3×15 mL). The combined organic layers were dried with sodium sulfate, filtered and concentrated in vacuo. The product was purified by flash chromatography using 5% EtOAc in heptanes as eluent to give the title compound (0.789 g, 78%). 1H NMR (400 MHz, CDCl3) δ ppm 0.84 (dd, 2 H), 1.40 (dd, 2 H), 1.95 (t, 2 H), 2.93 (t, 2 H), 7.14 (d, 1 H), 7.55 (dd, 1 H), 8.11 (d, 1 H); MS (ES+) m/z 250.98, 253.03 [M+H]+.

1. additionwas added
2. extractionthe resulting mixture was extracted with EtOAc (3×15 mL)
3. dry with materialThe combined organic layers were dried with sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customThe product was purified by flash chromatography