1-Naphthylamine → Hydrazine, 1-naphthalenyl-

HRID 962754

Reaktionsgleichung

Reaktionsgleichung von HRID 962754
[N:1]([O-])=O.[Na+].[C:5]1([NH2:15])[C:14]2[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:8]=[CH:7][CH:6]=1>O.Cl>[C:5]1([NH:15][NH2:1])[C:14]2[C:9](=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:8]=[CH:7][CH:6]=1

Komponenten

5

Edukt 2

HCID 86401-NaphthylamineHCID 23668193Sodium Nitrite

Produkt 1

HCID 75240Hydrazine, 1-naphthalenyl-Ausbeute 100 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 313Hydrochloric AcidLösungsmittel2×HCID 962WaterLösungsmittel

Versuchsvorschrift

Sodium nitrite (4.8 g) in water (20 ml) was added over 15 minutes to a stirred ice-cold suspension of 1-naphthylamine (9.58 g) in 6M hydrochloric acid (80 ml). After an additional 30 minutes in the ice bath, stannous chloride (44.5 9) in 6M hydrochloric acid (80 ml) was added slowly and the resulting suspension was stirred at O0 for 3 hr. The resulting solid was filtered off and dissolved in a mixture of 40% potassium hydroxide solution (100 ml) and ethyl acetate (150 ml). The organic layer was separated and the aqueous layer was extracted with ethyl acetate (3×100 ml). The combined organic extracts were dried and concentrated under reduced pressure to afford the title compound as a purple solid (10.58 g Rf= 0.1 in EA/CH (1/4)).

Aufarbeitung

  1. filtrationThe resulting solid was filtered off
  2. dissolutiondissolved in a mixture of 40% potassium hydroxide solution (100 ml) and ethyl acetate (150 ml)
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with ethyl acetate (3×100 ml)
  5. customThe combined organic extracts were dried
  6. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-e369363131c84756815218413a02911b
Quelldatensatz
uspto-grants-1998_06
Patentnummer
US05760059

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