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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ammonia | HCID 222 | — |
| Reactant | Methanol | HCID 887 | — |
| Reactant | Lithium | HCID 3028194 | — |
| Reactant | 7-Ethoxynaphthalen-1-amine | HCID 45091403 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 7-Ethoxy-5,8-dihydronaphthalen-1-amine | HCID 23066996 | 76% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07381840B2 |
|---|
| Source dataset | uspto-grants-2008_06 |
|---|
| ORD ID | ord-56a10a79e61b4ec3b76f7cbd37d65307 |
|---|
| Source note | uspto-grants-2008_06 |
|---|