Trifluoromethanesulfonic acid → 1-[3-mercapto-2-(methylthio)propanoyl]-L-proline

HRID 1706019Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1706019
C([O:5][C:6](=[O:28])[C@@H:7]1[CH2:11][CH2:10][CH2:9][N:8]1[C:12](=[O:27])[CH:13]([S:25][CH3:26])[CH2:14][S:15]CC1C=CC(OC)=CC=1)(C)(C)C.FC(F)(F)S(O)(=O)=O>ClCCl.C1(OC)C=CC=CC=1>[SH:15][CH2:14][CH:13]([S:25][CH3:26])[C:12]([N:8]1[CH2:9][CH2:10][CH2:11][C@H:7]1[C:6]([OH:28])=[O:5])=[O:27]

Komponenten

5

Edukt 2

HCID 62406Trifluoromethanesulfonic acidHCID 228056351-[3-(4-Methoxybenzylmercapto)-2-(methylthio)propanoyl]-L-proline tert-butyl ester

Produkt 1

HCID 228056361-[3-mercapto-2-(methylthio)propanoyl]-L-proline

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 7519AnisoleLösungsmittel

Versuchsvorschrift

1-[3-(4-Methoxybenzylmercapto)-2-(methylthio)propanoyl]-L-proline tert-butyl ester (0.5 g.) is dissolved in a mixture of dichloromethane (2 ml.) and anisole (1.1 ml.) under a blanket of argon in an ice bath. Trifluoromethanesulfonic acid (1 g.) is added and the mixture is stirred at room temperature for thirty minutes. The solvent is removed in vacuo and the residue is distributed between water and ethyl acetate. The organic layer is washed six times with water, dried and concentrated to dryness in vacuo to yield 1-[3-mercapto-2-(methylthio)propanoyl]-L-proline.

Aufarbeitung

  1. customThe solvent is removed in vacuo
  2. washThe organic layer is washed six times with water
  3. customdried
  4. concentrationconcentrated to dryness in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-acbec6a110af4595945395810c49c719
Quelldatensatz
uspto-grants-1980_06
Patentnummer
US04206121

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