反应详情

温度

50 °C

A solution of KCN (474 mg, 7.2 mmol) in water (1 mL) was slowly added to a solution of methyl 2-(bromomethyl)-6-nitrobenzoate (1 g, 3.6 mmol) in methanol (20 mL). This mixture was allowed to stir for 4 h at 50° C. The reaction mixture was concentrated to remove methanol, diluted with water (20 mL) and extracted with EtOAc (2×20 mL). The combined organic layers were washed with brine, dried (Na2SO4), concentrated and purified by flash column chromatography (25% EtOAc in hexanes) to give the title compound as 0.5 g of an oily liquid (62%). 1H NMR (CDCl3, 600 MHz): δ 3.9 (s, 2H), 3.97 (s, 3H), 7.65 (t, J=7.8 Hz, 1H), 7.85 (d, J=7.8 Hz, 1H), 8.09 (d, J=7.8 Hz, 1H).

1. concentrationThe reaction mixture was concentrated
2. customto remove methanol
3. additiondiluted with water (20 mL)
4. extractionextracted with EtOAc (2×20 mL)
5. washThe combined organic layers were washed with brine
6. dry with materialdried (Na2SO4)
7. concentrationconcentrated
8. custompurified by flash column chromatography (25% EtOAc in hexanes)