4-Toluenesulfonyl chloride → HCID 15049040, Verbindung

HRID 484552Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 484552
[Cl-].[C:2]([CH2:5][O:6][C@@H:7]1[CH2:12][CH2:11][CH2:10][CH2:9][C@H:8]1[NH3+:13])([OH:4])=[O:3].[C:14]1([CH3:24])[CH:19]=[CH:18][C:17]([S:20](Cl)(=[O:22])=[O:21])=[CH:16][CH:15]=1>[OH-].[Na+].C(OCC)C>[C:14]1([CH3:24])[CH:19]=[CH:18][C:17]([S:20]([NH:13][C@@H:8]2[CH2:9][CH2:10][CH2:11][CH2:12][C@H:7]2[O:6][CH2:5][C:2]([OH:4])=[O:3])(=[O:22])=[O:21])=[CH:16][CH:15]=1

Komponenten

5

Edukt 2

HCID 73974-Toluenesulfonyl chlorideHCID 67747384HCID 67747384, Verbindung

Produkt 1

HCID 15049040HCID 15049040, VerbindungAusbeute 67 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 3283Diethyl EtherLösungsmittelHCID 14798Sodium HydroxideLösungsmittel

Versuchsvorschrift

To a solution of trans-2-carboxymethoxy-cyclohexyl ammonium chloride (1.048 g, 5 mmoles) in 1N NaOH (15 ml), there was aded a solution of p-toluenesulphonyl chloride (1.048 g, 5.5 mmoles) in diethyl ether (20 ml). The mixture was vigorously stirred for 20 hours at room temperature. The aqueous phase was separated, washed with diethyl ether (20 ml), acidified with HCl 18% to pH 2 and extracted with diethyl ether (5×20 ml). The organic extracts were dried with MgSO4, the drying agent was filtered off and filtrate was evaporated in vacuo. The residue was recrystallized from diisopropyl ether. Thus, there were obtained 1.09 g (67%) of the title compound in the form of white crystals, melting point 56°-58° C.

Aufarbeitung

  1. customThe aqueous phase was separated
  2. washwashed with diethyl ether (20 ml)
  3. extractionextracted with diethyl ether (5×20 ml)
  4. dry with materialThe organic extracts were dried with MgSO4
  5. filtrationthe drying agent was filtered off
  6. customfiltrate was evaporated in vacuo
  7. customThe residue was recrystallized from diisopropyl ether

Quellen und Nachweise

ORD-Eintrag
ord-e31b0eab13a2408d804c572897a23672
Quelldatensatz
uspto-grants-1993_07
Patentnummer
US05231216

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