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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 130637Generated: October 25, 2026

Ammonia → 7-Ethoxy-5,8-dihydronaphthalen-1-amine

https://huagongshe.com/reaction/130637

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantMethanolHCID 887—
ReactantLithiumHCID 3028194—
Reactant7-Ethoxynaphthalen-1-amineHCID 45091403—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product7-Ethoxy-5,8-dihydronaphthalen-1-amineHCID 2306699676%

Reaction Conditions

Temperature-78 °C

Reaction Steps

Next, to a flask containing a mixture of (7-ethoxy-1-naphthyl)amine (1.80 g, 9.61 mmol) and t-buthanol (2.13 g, 28.8 mmol) in tetrahydrofuran (20 mL) was collected liquid ammonia (300 mL) at −78° C. To the mixture was added lithium (0.200 g, 28.8 mmol) over 30 minutes and stirred at −78° C. for 1 hour. Methanol and water was added, and the mixture was stirred at room temperature for 16 hours to allow ammonia to evaporate. To the obtained residue was added ethylacetate. The organic layer was washed with water, dried over Na2SO4, filtered, and concentrated under reduced pressure to afford (7-ethoxy-5,8-dihydronaphthalen-1-yl)amine (1.37 g, 76% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07381840B2
Source datasetuspto-grants-2008_06
ORD IDord-56a10a79e61b4ec3b76f7cbd37d65307
Source noteuspto-grants-2008_06