HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 30531Generated: October 25, 2026
Hydrochloric Acid → 8-Amino-3,4-dihydro-1H-naphthalen-2-one
https://huagongshe.com/reaction/30531
Participants
| Role | Name | HCID | Charge |
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| 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-ylamine (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 ethyl acetate. The organic layer was washed with water, dried over Na2SO4, filtered, and concentrated under reduced pressure to afford 8-amino-3,4-dihydro-1H-naphthalen-2-one (0.71 g, 78% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07423175B2 |
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| Source dataset | uspto-grants-2008_09 |
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| ORD ID | ord-61ab543b339a4ddfa2409d1072f93553 |
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| Source note | uspto-grants-2008_09 |
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