反应详情

A mixture of 2-(2-chloro-6-iodophenyl)acetic acid (10 g, 34 mmol) in 100 mL EtOH was treated with 2 mL concentrated H2SO4, and refluxed for 15 hours. The resulting mixture was cooled to room temperature and concentrated. The residue was diluted with 200 mL EtOAc, washed with water (3×50 mL), saturated NaCl (20 mL), dried over sodium sulfate and concentrated. The crude mixture was purified by column chromatography (10-20% EtOAc/hexane) to give 9.5 g of pale yellow oil. MS m/e: (M+H)+ 324.

1. temperaturerefluxed for 15 hours
2. concentrationconcentrated
3. additionThe residue was diluted with 200 mL EtOAc
4. washwashed with water (3×50 mL), saturated NaCl (20 mL)
5. dry with materialdried over sodium sulfate
6. concentrationconcentrated
7. customThe crude mixture was purified by column chromatography (10-20% EtOAc/hexane)