反应详情

温度

120 °C

In a solution of 0.20 g of 4-bromo-N-(methoxyiminomethyl)-2-methyl benzoic acid amide in 5 ml of N,N-dimethylformamide, 0.065 g of sodium formate and 0.026 g of dichlorobis(triphenylphosphine) palladium (II) were added, and stirred under carbon monoxide atmosphere at 120° C. for 1.5 hour. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, and poured in 30 mL of water, and extracted with ethyl acetate (20 mL×2). The combined organic phases were washed with water, and dehydrated with and dried over saturated sodium chloride aqueous solution and then anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that were eluated with ethyl acetate-hexane (gradient of 1:3 to 1:1) to obtain 0.071 g of the aimed product as colorless oily substance.

1. customAfter the completion of the reaction
2. waitthe reaction mixture was left
3. temperaturecooled to room temperature
4. extractionextracted with ethyl acetate (20 mL×2)
5. washThe combined organic phases were washed with water
6. dry with materialdried over saturated sodium chloride aqueous solution
7. distillationanhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure
8. customThe residue was purified with silica gel column chromatography that