4-Chloro-3-nitrobenzenesulfonamide → 4-hydrazinyl-3-nitrobenzene-1-sulfonamide

HRID 2073240Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2073240
O.[NH2:2][NH2:3].Cl[C:5]1[CH:10]=[CH:9][C:8]([S:11]([NH2:14])(=[O:13])=[O:12])=[CH:7][C:6]=1[N+:15]([O-:17])=[O:16]>C(O)C>[N+:15]([C:6]1[CH:7]=[C:8]([S:11](=[O:13])(=[O:12])[NH2:14])[CH:9]=[CH:10][C:5]=1[NH:2][NH2:3])([O-:17])=[O:16]

Komponenten

4

Edukt 2

HCID 73244-Chloro-3-nitrobenzenesulfonamideHCID 24654Hydrazine hydrate (1:1)

Produkt 1

HCID 32513014-hydrazinyl-3-nitrobenzene-1-sulfonamideAusbeute 93,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

20 ml of hydrazine hydrate were added to a suspension of 47.33 g of 4-chloro-3-nitrobenzenesulfonamide [prepared as described in: J. Am. Chem. Soc. 73, 2558 (1951)] in 200 ml of abs. ethanol. The mixture was boiled under stirring for 30 minutes, then cooled down. The crystals were filtered by suction and thoroughly washed with water to obtain 43.38 g (93.4%) of 2-nitro-4-sulfamoylphenylhydrazine, m.p.: 217°-218° C. (with decomposition).

Aufarbeitung

  1. temperaturecooled down
  2. filtrationThe crystals were filtered by suction
  3. washthoroughly washed with water

Quellen und Nachweise

ORD-Eintrag
ord-50a040bc31c94b1882c25be56ec047d6
Quelldatensatz
uspto-grants-1990_04
Patentnummer
US04916149

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