反应详情

To a stirred solution of 5-methoxyoxindole (197 mg, 1.21 mmol) in anhydrous THF (10 ml) under nitrogen was added 1.0M LiHMDS/THF solution (2.8 ml, 2.8 mmol). The mixture was stirred at room temperature for 10 minutes, and 5-(2-morpholin-4-yl-ethoxy)-3H-isobenzofuran-1-one (200 mg, 0.76 mmol) was added. After stirred at room temperature for 3.0 hours, the mixture was poured into a mixture of THF (5 ml) and 2M HCl aqueous solution (10 ml), and heated at 60° C. for 40 minutes. The mixture was cooled to room temperature, basified with 5M NaOH aqueous solution, and then poured into water (150 ml). The resulting solid was separated, rinsed with water, and dried to give 5-methoxy-3-[5-(2-morpholin-4-yl-ethoxy)-3H-isobenzofuran-1-ylidene]-1,3-dihydro-indol-2-one as a yellow solid (275 mg, 89%).

1. stirringAfter stirred at room temperature for 3.0 hours
2. temperatureheated at 60° C. for 40 minutes
3. temperatureThe mixture was cooled to room temperature
4. customThe resulting solid was separated
5. washrinsed with water
6. customdried