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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1366495Generated: October 29, 2026

5-Benzyl-5-azaspiro[2.4]heptane-4,7-dione → 5-Benzyl-5-azaspiro[2.4]heptan-7-ol

https://huagongshe.com/reaction/1366495

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Benzyl-5-azaspiro[2.4]heptane-4,7-dioneHCID 9877787—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
Product5-Benzyl-5-azaspiro[2.4]heptan-7-olHCID 58452923104.4%

Reaction Conditions

Temperature65 °C

Reaction Steps

5-(Phenylmethyl)-5-azaspiro[2.4]heptane-4,7-dione (997.4 mg, 4.63 mmol) was dissolved in 46 mL of THF and LiAlH4 (997 mg) was added portion wise with stirring. The mixture was heated to 65° C. for 5 hours, then cooled to 0° C. The reaction was quenched with Na2SO4.H2O and was stirred at room temperature overnight. The contents were filtered through Celite, and the Celite pad was washed with EtOAc. The Celite filter cake was suspended in EtOAc (200 mL) and boiled for 5 min. The suspension was filtered, and the combined organic filtrates were then concentrated in vacuo to provide 5-(phenylmethyl)-5-azaspiro[2.4]heptan-7-ol (983 mg, >100%). LCMS: (M+H)+: 204.1

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893056B2
Source datasetuspto-grants-2011_02
ORD IDord-ab64afb184ff459ab687d209604f942d
Source noteuspto-grants-2011_02