反应详情

温度

60 °C

A mixture of 2-acetyl-6chloro-3-nitrobenzenesulfonamide (150 mg, 0.51 mmol), potassium carbonate (84 mg, 0.61 mmol) and allyl bromide (0.18mL, 2.mmol) in 3 mL of N, N-dimethylformamide was heated to 60° C. for 4 days. The mixture was acidified with 1 N aq. HCl, then extracted with ethyl acetate. The solvent was concentrated to give the crude material. Colurnt chromatography on silica gel, eluting with ethyl acetate/hexane/acetic acid (50/49/1, v/v/v), gave the desired product (40 mg, 12%). EI-MS (m/z) 333.3, 335.2 (M−).

1. extractionextracted with ethyl acetate
2. concentrationThe solvent was concentrated
3. customto give the crude material
4. washColurnt chromatography on silica gel, eluting with ethyl acetate/hexane/acetic acid (50/49/1, v/v/v)