反应详情

A solution of 69.4 mg (0.236 mmol) methyl-2-trichloromethyl-1H-benzoimidazole-4-carboxylate in 2 mL THF were slowly added to a mixture containing 50 mg (0.26 mmol) 4-(4-amino-phenyl)-morpholin-3-one, 220 mg (2.62 mmol) NaHCO3, 8 mL THF and 3 mL H2O. The mixture was stirred vigorously for 3 h at room temperature, diluted with 50 mL CH2Cl2 and washed with 30 mL of a saturated NaHCO3-solution. The aqueous solution was extracted with 50 mL CH2Cl2 and the combined organic layers were dried over MgSO4 and concentrated under reduced pressure to give a brown solid, which was pure enough for the following reactions.

1. washwashed with 30 mL of a saturated NaHCO3-solution
2. extractionThe aqueous solution was extracted with 50 mL CH2Cl2
3. dry with materialthe combined organic layers were dried over MgSO4
4. concentrationconcentrated under reduced pressure
5. customto give a brown solid, which