反应详情

温度

75 °C

To a solution of 4-formylphenylboric acid (6.7 g) in N,N-dimethylformamide (100 ml) were added 2-bromobenzoic acid methyl ester (6.5 g), tetrakis(triphenylphosphine)palladium [Pd(PPh3)4] (1.0 g) and tripotassium phosphate (23 g). The reaction mixture was stirred for 5 hours at 75° C. The reaction mixture was filtrated and concentrated. To the residue were added 1N hydrochloric acid and ethyl acetate, and the mixture was concentrated. The residue was purified by column chromatography on silica gel (hexane:ethyl acetate=9:1) to give the title compound (4.1 g) having the following physical data.

1. filtrationThe reaction mixture was filtrated
2. concentrationconcentrated
3. additionTo the residue were added 1N hydrochloric acid and ethyl acetate
4. concentrationthe mixture was concentrated
5. customThe residue was purified by column chromatography on silica gel (hexane:ethyl acetate=9:1)