反应详情

温度

100 °C

A mixture of 4-chloro-2-methyl-benzoic acid (3.40 g, 20 mmol,), N-iodosuccinamide (4.4 g, 22 mmol) and palladium (II) acetate (0.448 g, 2 mmol) in dry DMF (35 mL) was heated at 100° C. for 36 h under nitrogen atmosphere. After this time, the reaction mixture was cooled to ambient temperature and poured into water. The aqueous solution was extracted with ethyl acetate (2×100 mL) and the combined organic extracts were washed with aqueous sodium thiosulphate (30 mL) and brine (30 mL). The organic solution was dried over anhydrous MgSO4, filtered and concentrated to afford 4-chloro-2-iodo-6-methyl-benzoic acid. The product was used without further purification.

1. temperatureAfter this time, the reaction mixture was cooled to ambient temperature
2. extractionThe aqueous solution was extracted with ethyl acetate (2×100 mL)
3. washthe combined organic extracts were washed with aqueous sodium thiosulphate (30 mL) and brine (30 mL)
4. dry with materialThe organic solution was dried over anhydrous MgSO4
5. filtrationfiltered
6. concentrationconcentrated