m-Chloroperbenzoic acid → 3-(2-Fluorophenyl)-5-(methanesulfinyl)-4-methyl-4H-1,2,4-triazole

HRID 1885277Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1885277
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[N:12]([CH3:13])[C:11]([S:14][CH3:15])=[N:10][N:9]=1.ClC1C=C(C=CC=1)C(OO)=[O:21]>C(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[N:12]([CH3:13])[C:11]([S:14]([CH3:15])=[O:21])=[N:10][N:9]=1

Komponenten

4

Edukt 2

HCID 70297m-Chloroperbenzoic acidHCID 30879983-(2-Fluorophenyl)-4-methyl-5-(methylsulfanyl)-4H-1,2,4-triazole

Produkt 1

HCID 30880003-(2-Fluorophenyl)-5-(methanesulfinyl)-4-methyl-4H-1,2,4-triazole

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

To a stirred, 0° C., solution of 3-(2-fluorophenyl)-4-methyl-5-methylthio-4H-1,2,4-triazole (5.0 g, 2.2×10-2 mole) and CH2Cl2 (125 ml) was added portionwise m-chloroperoxybenzoic acid (4.83 g, 2.24×10-2 mole, 80% active MCPBA). After stirring overnight at room temperature, the reaction was diluted with CH2Cl2 until homogeneous and was then washed in turn twice with saturated aqueous NaHCO3 and once with saturated aqueous NaCl. After drying over anhydrous Na2SO4, the CH2Cl2 was evaporated leaving an oil which slowly crystallized. Crystallization from EtOAc/hexane gave a colorless solid: Mp 95°-97° C.

Aufarbeitung

  1. washwas then washed
  2. dry with materialAfter drying over anhydrous Na2SO4
  3. customthe CH2Cl2 was evaporated
  4. customleaving an oil which
  5. customslowly crystallized
  6. customCrystallization from EtOAc/hexane
  7. customgave a colorless solid

Quellen und Nachweise

ORD-Eintrag
ord-a4c585b786244b9da4aca9e32fc511ab
Quelldatensatz
uspto-grants-1992_09
Patentnummer
US05143933

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