反应详情

温度

80 °C

11.68 g (30.0 mmol) of N-[2-(4-benzyloxy-3-methoxyphenyl)ethyl]-2-(4-methylphenyl)acetamide and 15.67 g (90.0 mmol) of t-butoxybis(dimethylamino) methane were mixed and stirred at 80° C. for 2 hours. The reaction mixture was cooled and tetrahydrofuran was added thereto. The reaction mixture was acidified with 5% hydrochloric acid and stirred at room temperature for 2 hours. After the solvent was distilled off under reduced pressure, water and 5% hydrochloric acid were added to the residue, which was followed by extracted with chloroform twice, washed with saturated brine twice, dried over anhydrous magnesium sulfate and the solvent was distilled off under reduced pressure. The residue was washed with hexane and dried to give 11.30 g of N-[2-(4-benzyloxy-3-methoxyphenyl)ethyl]-3-hydroxy-2-(4-methylphenyl)acrylamide.

1. temperatureThe reaction mixture was cooled
2. stirringstirred at room temperature for 2 hours
3. distillationAfter the solvent was distilled off under reduced pressure, water and 5% hydrochloric acid
4. additionwere added to the residue, which
5. extractionby extracted with chloroform twice
6. washwashed with saturated brine twice
7. dry with materialdried over anhydrous magnesium sulfate
8. distillationthe solvent was distilled off under reduced pressure
9. washThe residue was washed with hexane
10. customdried