反应详情

A mixture of 3,5-diisopropyl-4-(2-morpholin-4-ylethoxy)-benzaldehyde (0.4 g, 1.26 mmol), 5-chloro-2-oxindole (0.21 g, 1.26 mmol) and pyrrolidine (0.5 ml, 6.3 mmol) in ethanol (2 ml) was held in sealed tube at 100° C. for 12 hours. The mixture was then poured into 1N hydrochloric acid (100 ml) and the solid which remained were filtered and washed with more water (50 ml). The solid was then dissolved in ethyl acetate (200 ml), the solution dried over magnesium sulfate, filtered and then concentrated. The solid which remained was chromatographed (silica, 4/4/1 dichloromethane/hexanes/methanol) to give 60 mg (10%) of 5-chloro-3-[3,5-diisopropyl-4-(2-morpholin-4-ylethoxy)-benzylidene]-1,3-dihydroindol-2-one as a brownish-orange solid.

1. filtrationthe solid which remained were filtered
2. washwashed with more water (50 ml)
3. dissolutionThe solid was then dissolved in ethyl acetate (200 ml)
4. dry with materialthe solution dried over magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated
7. customThe solid which remained was chromatographed (silica, 4/4/1 dichloromethane/hexanes/methanol)