Water → HCID 178501896, Verbindung

HRID 230736

Reaktionsgleichung

Reaktionsgleichung von HRID 230736
S(OS([O-])=O)([O-])=O.[Na+].[Na+].[Cl:10][C:11]1[S:12][C:13]([CH:16]=O)=[CH:14][CH:15]=1.[NH2:18][C:19]1[CH:20]=[C:21]([S:26]([CH2:29][C:30]([O:32][CH3:33])=[O:31])(=[O:28])=[O:27])[CH:22]=[CH:23][C:24]=1[NH2:25].O>CN1CCCC1=O>[Cl:10][C:11]1[S:12][C:13]([C:16]2[NH:25][C:24]3[CH:23]=[CH:22][C:21]([S:26]([CH2:29][C:30]([O:32][CH3:33])=[O:31])(=[O:28])=[O:27])=[CH:20][C:19]=3[N:18]=2)=[CH:14][CH:15]=1

Komponenten

6

Edukt 4

HCID 962WaterHCID 24346Disodium disulfiteHCID 817002-Thiophenecarboxaldehyde, 5-chloro-HCID 57763314Methyl (3,4-diaminobenzenesulfonyl)acetate

Produkt 1

HCID 178501896HCID 178501896, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Reaktionsbedingungen

Temperatur
110 °C

Versuchsvorschrift

14.4 747 mg (3.93 mmol) of sodium disulfite are added to a solution of 1.15 g (7.86 mmol) of 2-chlorothiophene-5-carbaldehyde and 1.92 g (7.86 mmol) of methyl (3,4-diaminobenzenesulfonyl)acetate in 25 ml of 1-methylpyrrolidone, and the mixture is stirred at 110° C. for 18 hours. Water is added to the reaction mixture, which is extracted with dichloromethane. The organic phase is dried over sodium sulfate and evaporated. The residue is stirred with water, and the resultant precipitate is filtered off, giving methyl [2-(5-chlorothiophen-2-yl)-1H-benzimidazole-5-sulfonyl]-acetate as a brown solid; ESI 371.

Aufarbeitung

  1. extractionis extracted with dichloromethane
  2. dry with materialThe organic phase is dried over sodium sulfate
  3. customevaporated
  4. stirringThe residue is stirred with water
  5. filtrationthe resultant precipitate is filtered off

Quellen und Nachweise

ORD-Eintrag
ord-f5de34153b9b43da8657d33176101420
Quelldatensatz
uspto-grants-2009_07
Patentnummer
US07566789B2

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