Ethanol → (S)-1,2,3,5,6,7,8,8a-octahydroindolizin-7-one

Participants

Reaction Steps

(S)-7-(1-Pyrrolidinyl)-1,2,3,5,8,8a-hexahydroindolizin-5-one (645 mg (3.13 mmol), prepared as described in 4)) was dissolved in tetrahydrofuran (10 ml). To the solution was added lithium aluminum hydride (356 mg, 9.39 mmol) under ice cooling, and the resulting mixture was stirred at room temperature overnight. To the reaction mixture were added an aqueous solution of 1N sodium hydroxide (1.44 ml) and ethanol, and insoluble material was filtered off. The filtrate was concentrated by distillation under reduced pressure and the resulting residue was purified by column chromatography through alumina (eluent, ethyl acetate), to give the title compound (236 mg) as a light brown oil (yield 54%).

Provenance & Evidence