Hydrochloric Acid → 8-Amino-3,4-dihydro-1H-naphthalen-2-one

HRID 130638

Reaktionsgleichung

Reaktionsgleichung von HRID 130638
C([O:3][C:4]1[CH2:13][C:12]2[C:11]([NH2:14])=[CH:10][CH:9]=[CH:8][C:7]=2[CH2:6][CH:5]=1)C.Cl.[Na]>O1CCCC1>[NH2:14][C:11]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:12]=1[CH2:13][C:4](=[O:3])[CH2:5][CH2:6]2

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 5360545SodiumHCID 230669967-Ethoxy-5,8-dihydronaphthalen-1-amine

Produkt 1

HCID 230669938-Amino-3,4-dihydro-1H-naphthalen-2-oneAusbeute 78 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

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 stiired at 40° C. for 1 hour. The mixture was neutralized with addition of sodium bicorbonate, 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).

Aufarbeitung

  1. extractionthe product was extracted with ethylacetate
  2. washThe organic layer was washed with water
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-3b9d9c1b072f435c85502741baac105b
Quelldatensatz
uspto-grants-2008_06
Patentnummer
US07381840B2

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