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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 416126Generated: October 26, 2026

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

https://huagongshe.com/reaction/416126

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 numberUS08088826B2
Source datasetuspto-grants-2012_01
ORD IDord-008d8520d29c4153a7a72bc9be1b1d1a
Source noteuspto-grants-2012_01