Réaction #1005960

ord-cc81befbaacf4c5486798342eff386c2

Équation de réaction

O=C(OO)c1cccc(Cl)c1
3-chloroperoxybenzoic acid
CCSc1ccccc1-n1cc2ccc(C(F)(F)F)cc2n1
2-(2-ethylsulfanylphenyl)-6-trifluoromethyl-2H-indazole
O=S([O-])([O-])=S.[Na+].[Na+]
sodium thiosulfate
CCS(=O)(=O)c1ccccc1-n1cc2ccc(C(F)(F)F)cc2n1
2-(2-ethylsulfonylphenyl)-6-trifluoromethyl-2H-indazole

Solvants

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Extractionthe mixture was extracted with chloroform
  2. 2
    LavageThe organic layer was washed with a saturated aqueous sodium bicarbonate solution
  3. 3
    Séchagedried over anhydrous magnesium sulfate
  4. 4
    Concentrationconcentrated under reduced pressure

Mode opératoire

607 mg of 3-chloroperoxybenzoic acid (purity of 65% or more) was added to a mixture of 407 mg of 2-(2-ethylsulfanylphenyl)-6-trifluoromethyl-2H-indazole and 5 ml of chloroform under ice cooling, and the mixture was stirred at room temperature for 4 hours. A 10% aqueous sodium thiosulfate solution was poured to the reaction mixture, and the mixture was extracted with chloroform. The organic layer was washed with a saturated aqueous sodium bicarbonate solution and dried over anhydrous magnesium sulfate, then concentrated under reduced pressure to obtain 452 mg of 2-(2-ethylsulfonylphenyl)-6-trifluoromethyl-2H-indazole (hereinafter, referred to as Compound of Present Invention 2)

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US09271500B2uspto-grants-2016_03