ethyl 9-(cyanomethyl)-8,9-dihydro-7H-cyclopenta[c]pyrazolo[1,5-a]pyridine-1-carboxylate → ethyl 9-(2-aminoethyl)-8,9-dihydro-7H-cyclopenta[c]pyrazolo[1,5-a]pyridine-1-carboxylate

Participants

Reaction Steps

Ethyl 9-(cyanomethyl)-8,9-dihydro-7H-cyclopenta[c]pyrazolo[1,5-a]pyridine-1-carboxylate (150 mg, 0.557 mmol) and Raney cobalt (1.5 g) were suspended in 2M ammonia/ethanol solution (28 mL), and the mixture was stirred under a hydrogen atmosphere at room temperature for 12 hr. The catalyst was filtered off through celite, and the filtrate was concentrated under reduced pressure to give the title compound (150 mg, yield 99%).

Provenance & Evidence