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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2389886Generated: November 1, 2026

8,9-Dihydrofuro[3,2-c]pyrazolo[1,5-a]pyridin-1-ylacetonitrile → 2-(8,9-Dihydrofuro[3,2-c]pyrazolo[1,5-a]pyridin-1-yl)ethanamine

https://huagongshe.com/reaction/2389886

Reaction equation

Participants

RoleNameHCIDCharge
Reactant8,9-Dihydrofuro[3,2-c]pyrazolo[1,5-a]pyridin-1-ylacetonitrileHCID 59179377—
CatalystCobaltHCID 104730—
SolventAmmonia methanolHCID 21705897—
Product2-(8,9-Dihydrofuro[3,2-c]pyrazolo[1,5-a]pyridin-1-yl)ethanamineHCID 5917942294%

Reaction Steps

8,9-Dihydrofuro[3,2-c]pyrazolo[1,5-a]pyridin-1-ylacetonitrile (250 mg, 1.25 mmol) and Raney cobalt (2.5 g) were suspended in 2M ammonia/methanol solution (50 mL), and the suspension was stirred at room temperature for 12 hr under a hydrogen atmosphere. The catalyst was filtered through celite, and the filtrate was concentrated under reduced pressure to give the title compound (238 mg, yield 94%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08273761B2
Source datasetuspto-grants-2012_09
ORD IDord-575d0b644ce94160979ea230c77217b8
Source noteuspto-grants-2012_09