反应详情

Pd/C 10% (0.25 g) was added to the suspension of tert-butyl 4-(5-chloro-1H-indol-3-yl)-5,6-dihydropyridine-1(2H)-carboxylate (1.10 g; 3.31 mmol) in a mixture of methanol (100 mL) and ammonium formate (2.71 g; 42.97 mmol). The mixture was refluxed for 20 hours and was filtered through celite. The filtrate was concentrated under reduced pressure and the crude material was purified by flash chromatography on silica gel (eluent: 0 to 10% ethyl acetate in dichloromethane) to give 0.65 g (61%) of the title compound as a pink solid.

1. temperatureThe mixture was refluxed for 20 hours
2. filtrationwas filtered through celite
3. concentrationThe filtrate was concentrated under reduced pressure
4. customthe crude material was purified by flash chromatography on silica gel (eluent: 0 to 10% ethyl acetate in dichloromethane)