反应详情

温度

50 °C

To a solution of 2-hydroxy-4-nitro-benzonitrile [164 mg, 1.0 mmol, prepared as described in Yasubiro Imakura et. al. Chem. Pharm. Bull. 40 (7), 1691-1696 (1992)] in anhydrous DMF (2 mL) was added allyl bromide (0.11 mL, 1.3 mmol), followed by K2CO3 (166 mg, 1.2 mmol). The resulting suspension was heated to 50° C. under Argon for 4 h. After cooling to rt, the reaction mixture was poured into ice/water, and extracted with EtOAc (3×). The combined EtOAc extracts were washed with brine, dried (Na2SO4), and concentrated under reduced pressure. The crude product was chromatographed (silica gel) eluting with 30% to 60% EtOAc/hexane to furnish the title compound (160 mg, 80% yield) as a light yellow solid.

1. temperatureAfter cooling to rt
2. extractionextracted with EtOAc (3×)
3. washThe combined EtOAc extracts were washed with brine
4. dry with materialdried (Na2SO4)
5. concentrationconcentrated under reduced pressure
6. customThe crude product was chromatographed (silica gel)
7. washeluting with 30% to 60% EtOAc/hexane