反应详情

To a solution of 4-(3-carboxy-4-methoxyphenoxy)-1-nitrobenzene (0.50 g, 1.75 mmol) in CH2Cl2 (12 mL) was added SOCl2 (0.64 mL, 8.77 mmol) in portions. The resulting solution was heated at the reflux temp. for 18 h, cooled to room temp., and concentrated under reduced pressure. The resulting yellow solids were dissolved in CH2Cl2 (3 mL) then the resulting solution was treated with a methylamine solution (2.0 M in THF, 3.5 mL, 7.02 mmol) in portions (CAUTION: gas evolution), and stirred at room temp. for 4 h. The resulting mixture was treated with a 1N NaOH solution, then extracted with CH2Cl2 (25 mL). The organic layer was dried (Na2SO4) and concentrated under reduced pressure to give 4-(3-(N-methylcarbamoyl)-4-methoxyphenoxy)-1-nitrobenzene as a yellow solid (0.50 g, 95%).

1. temperatureThe resulting solution was heated at the reflux temp
2. temperaturecooled to room temp.
3. concentrationconcentrated under reduced pressure
4. dissolutionThe resulting yellow solids were dissolved in CH2Cl2 (3 mL)
5. extractionextracted with CH2Cl2 (25 mL)
6. dry with materialThe organic layer was dried (Na2SO4)
7. concentrationconcentrated under reduced pressure