反应详情

To a mixture of 2-acetyl-6-chloro-3-nitrobenzenesulfonamide (300 mg, 1.02 mmol) and sodium hydride (53 mg, 1.32 mmol) in 10 mL of N,N-dimethylformamide, iodomethane (70 μL, 1.12 mmol) was added. The mixture was stirred at room temperature for 66 hours. The mixture was acidified with 1 N aq. HCl, then extracted with ethyl acetate. The solvent was concentrated to give the crude material. Column chromatography on silica gel, eluting with ethyl acetate/hexane/acetic acid (50/49/1, v/v/v), gave the desired product (185 mg, 59%). EI-MS (m/z) 307.3, 309.3 (M−).

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