Stannous Chloride → (2-Bromo-5-nitrophenyl)hydrazine

HRID 2233740Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2233740
[Br:1][C:2]1[CH:8]=[CH:7][C:6]([N+:9]([O-:11])=[O:10])=[CH:5][C:3]=1[NH2:4].[N:12]([O-])=O.[Na+].[Sn](Cl)Cl>Cl.O>[Br:1][C:2]1[CH:8]=[CH:7][C:6]([N+:9]([O-:11])=[O:10])=[CH:5][C:3]=1[NH:4][NH2:12]

Komponenten

6

Edukt 3

HCID 24479Stannous ChlorideHCID 826072-Bromo-5-nitroanilineHCID 23668193Sodium Nitrite

Produkt 1

HCID 53402499(2-Bromo-5-nitrophenyl)hydrazine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 313Hydrochloric AcidLösungsmittel2×HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To 2-bromo-5-nitro-aniline (5 g) in conc hydrochloric acid (50 ml) at 0° C. was added a solution of sodium nitrite (1.45 g) in water (20 ml). After 1 h, a solution of tin dichloride (8.73 g) in conc hydrochloric acid (15 ml) was added. The reaction was stirred for 30 min at 0° C. and 1 h at room temperature. The resulting solid was filtered off and recrystalised from hot ethanol. Yield 2.9 g.

Aufarbeitung

  1. filtrationThe resulting solid was filtered off
  2. customrecrystalised from hot ethanol

Quellen und Nachweise

ORD-Eintrag
ord-579cf4552cf64d90b1508cba0aa5d6a2
Quelldatensatz
uspto-grants-2010_05
Patentnummer
US07709521B2

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