HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1922532Generated: October 31, 2026
Hydrochloric Acid → 8-Amino-3,4-dihydro-1H-naphthalen-2-one
https://huagongshe.com/reaction/1922532
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | 7-Ethoxy-5,8-dihydronaphthalen-1-amine | HCID 23066996 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 8-Amino-3,4-dihydro-1H-naphthalen-2-one | HCID 23066993 | 78% |
Reaction Steps
To a stirred solution of (7-ethoxy-5,8-dihydronaphthalen-1-yl)amine (1.07 g, 5.65 mmol) in tetrahydrofuran (30 mL) was added solution of aqueous 2N HCl (10 mL), and stirred at 40° C. for 1 hour. The mixture was neutralized with addition of sodium bicarbonate, and the product was extracted with ethylacetate. The organic layer was washed with water, dried over Na2SO4, filtered, and concentrated under reduced pressure to afford 8-amino-3,4-dihydronaphthalen-2(1H)-one (0.71 g, 78% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08173841B2 |
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| Source dataset | uspto-grants-2012_05 |
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| ORD ID | ord-8913e399ee2c4d0fba23a248999ccecb |
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| Source note | uspto-grants-2012_05 |
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