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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 455349Generated: October 26, 2026

Ethyl Acetate → cis-2,3,4,4a,9,9a-hexahydro-1H-indeno[2,1-b]pyridine

https://huagongshe.com/reaction/455349

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantSodium HydroxideHCID 14798—
ReactantAluminium lithium hydrideHCID 21226445—
Reactantcis-1,3,4,4a,9,9a-Hexahydro-indeno[2,1-b]pyridin-2-oneHCID 58124040—
SolventTetrahydrofuranHCID 8028—
Productcis-2,3,4,4a,9,9a-hexahydro-1H-indeno[2,1-b]pyridineHCID 58123900—

Reaction Steps

Lithium aluminum hydride (1 mol/L in tetrahydrofuran, 12 mL) is added to a solution of cis-1,3,4,4a,9,9a-hexahydro-indeno[2,1-b]pyridin-2-one (0.95 g) in tetrahydrofuran (15 mL) at room temperature. The resulting solution is heated to reflux temperature and stirred at this temperature for 2 h. After cooling to room temperature, the solution is poured into ice-cold water, 1 M aqueous NaOH solution and ethyl acetate are added, and the resulting mixture is filtered over Celite. The aqueous phase of the filtrate is separated and extracted with ethyl acetate and the extracts are combined with the organic phase of the filtrate. The organic phase is washed with brine and dried (MgSO4). The solvent is evaporated to give the title compound as a colorless solid. Yield: 0.83 g (94% of theory); LC (method 1): tR=1.29 min; Mass spectrum (ESI+): m/z=174 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08497281B2
Source datasetuspto-grants-2013_07
ORD IDord-ca52aa7c55054e8d86a460d501058ad6
Source noteuspto-grants-2013_07