反应详情

To a solution of 1.1 g of 4-Amino-benzoic acid methyl ester in 17 ml of toluene were added 2.2 ml of pyridine and 1.5 g of 2-Bromo-propionyl bromide at room temperature. After 16 h the reaction mixture was diluted with water and filtered through a chem Elut® cartridge by eluting with ethyl acetate. The solvents were removed under reduced pressure and the crude product was purified by chromatography on silica gel eluting with a gradient of n-heptane/ethyl acetate. The fractions containing the product were combined and the solvent evaporated under reduced pressure. Yield: 2 g.

1. filtrationfiltered through a chem Elut® cartridge
2. washby eluting with ethyl acetate
3. customThe solvents were removed under reduced pressure
4. customthe crude product was purified by chromatography on silica gel eluting with a gradient of n-heptane/ethyl acetate
5. additionThe fractions containing the product
6. customthe solvent evaporated under reduced pressure