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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 351585Generated: October 25, 2026

1,4-Dioxane → (5,6-Dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)Oxoacetamide

https://huagongshe.com/reaction/351585

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DioxaneHCID 31275—
Reactant(5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)acetamideHCID 16742967—
CatalystPalladiumHCID 23938—
SolventWaterHCID 962—
Product(5,6-Dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)OxoacetamideHCID 2255669396%

Reaction Steps

To a solution of (5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1-yl)acetamide (0.30 g, 1.31 mmol) in dioxane (6 mL) and water (2 mL) was added 10% palladium on carbon (0.060 g), followed by the careful addition of NaH2PO2.H2O (0.60 g, 5.67 mmol) and the reaction was brought to reflux under nitrogen. After 3 hours an additional 0.60 g of NaH2PO2.H2O was added and the reaction was heated at reflux for another 6 hrs. The mixture was cooled, filtered through a pad of Celite, and washed well with ethyl acetate (100 mL). The solution was concentrated under reduced pressure and the residue triturated with water (20 mL). The resulting suspension was filtered and the recovered solid dried under reduced pressure to provide 0.27 g (96%) of the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06743785B2
Source datasetuspto-grants-2004_06
ORD IDord-4a9d35e15e5a4c568e6a1f5fb0f5cde0
Source noteuspto-grants-2004_06