Sodium Thiosulfate → HCID 66612071, compound

Participants

Reaction Steps

To a mixture of 0.60 g of 1-methyl-2-(3-methylthiopyridin-4-yl)-5-trifluoromethyl-1H-benzimidazole and 9 ml of chloroform was added 1.40 g of 69% m-chloroperbenzoic acid under ice cool, then, the mixture was stirred for 2 hours at room temperature. Thereafter, a saturated sodium hydrogen carbonate aqueous solution and a saturated sodium thiosulfate aqueous solution were poured, and the mixture was extracted three times with chloroform. The combined organic layers were dried over magnesium sulfate, then, concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to obtain 0.52 g of 2-(3-methanesulfonylpyridin-4-yl)-1-methyl-5-trifluoromethyl-1H-benzimidazole (hereinafter, referred to as present active compound 19).

Provenance & Evidence