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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1711223Generated: November 1, 2026

Ammonia → 4-Oxo-6-piperidin-1-yl-4,5-dihydro-furo[2,3-c]quinoline-2-carbonitrile

https://huagongshe.com/reaction/1711223

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant4-Oxo-6-piperidin-1-yl-4,5-dihydro-furo[2,3-c]quinoline-2-carbaldehydeHCID 59796775—
CatalystManganese dioxideHCID 14801—
SolventIsopropanolHCID 3776—
Product4-Oxo-6-piperidin-1-yl-4,5-dihydro-furo[2,3-c]quinoline-2-carbonitrileHCID 24758390—

Reaction Steps

A solution of 4-oxo-6-piperidin-1-yl-4,5-dihydro-furo[2,3-c]quinoline-2-carbaldehyde (v) in isopropanol (“iPrOH”) is treated with ammonia gas at room temperature. After 90 min, the reaction is treated with MnO2 and stirred for an additional 16 h. The reaction is filtered and evaporated onto celite. Chromatography on silica gel affords 4-oxo-6-piperidin-1-yl-4,5-dihydro-furo[2,3-c]quinoline-2-carbonitrile.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07790724B2
Source datasetuspto-grants-2010_09
ORD IDord-f5f842a8051f425cbbbeec3045e401a8
Source noteuspto-grants-2010_09