Ethanol → Benzoic acid, 3-(aminosulfonyl)-4-chloro-, ethyl ester

HRID 1515411Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1515411
[Cl:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][C:3]=1[S:11](=[O:14])(=[O:13])[NH2:12].[CH2:15](O)[CH3:16]>>[CH2:15]([O:7][C:6](=[O:8])[C:5]1[CH:9]=[CH:10][C:2]([Cl:1])=[C:3]([S:11](=[O:13])(=[O:14])[NH2:12])[CH:4]=1)[CH3:16]

Komponenten

3

Edukt 2

HCID 702EthanolHCID 145684-Chloro-3-sulfamoylbenzoic acid

Produkt 1

HCID 15938945Benzoic acid, 3-(aminosulfonyl)-4-chloro-, ethyl esterAusbeute 99 %

Versuchsvorschrift

To a suspension of 4-chloro-3-sulfamoyl-benzoic acid (50 g, 212 mmol) in 500 mL ethanol is bubbled HCl gas for 10 minutes. The resulting suspension is then heated at reflux for 16 h, cooled and concentrated in vacuo. The resulting residue is recrystallized from isopronanol to yield 55.9 g (99%) of the title compound as an off-white solid.

Aufarbeitung

  1. customis bubbled HCl gas for 10 minutes
  2. temperatureThe resulting suspension is then heated
  3. temperatureat reflux for 16 h
  4. temperaturecooled
  5. concentrationconcentrated in vacuo
  6. customThe resulting residue is recrystallized from isopronanol

Quellen und Nachweise

ORD-Eintrag
ord-a49ffe99593c4c9c9a5206b847320eb8
Quelldatensatz
uspto-grants-2012_07
Patentnummer
US08222424B2

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