2-Amino-5-chlorobenzenesulphonamide → 7-Chloro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide

HRID 17844

Reaktionsgleichung

Reaktionsgleichung von HRID 17844
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1[S:9]([NH2:12])(=[O:11])=[O:10].[CH:13]([O-])([O-])OCC>>[Cl:8][C:5]1[CH:6]=[CH:7][C:2]2[NH:1][CH:13]=[N:12][S:9](=[O:11])(=[O:10])[C:3]=2[CH:4]=1

Komponenten

3

Edukt 2

HCID 122955502-Amino-5-chlorobenzenesulphonamideHCID 53630039Ethylorthoformate

Produkt 1

HCID 100362767-Chloro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide

Versuchsvorschrift

A mixture of 2-amino-5-chlorobenzenesulphonamide (obtained according to J. Chem. Soc. Perkin I, 1043-1047, 1979) and ethyl orthoformate (40 mL) is heated at boiling for 30 minutes in an open vessel. The volume of the mixture is reduced by half under reduced pressure. The precipitate obtained is collected by filtration, washed with ether and dried.

Aufarbeitung

  1. temperatureis heated
  2. customThe precipitate obtained
  3. filtrationis collected by filtration
  4. washwashed with ether
  5. customdried

Quellen und Nachweise

ORD-Eintrag
ord-6b717345c1614eb9a2a1a77154c00af2
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07741320B2

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