Sodium Thiosulfate → HCID 21995775, compound

Participants

Reaction Steps

To a solution of methyl 7-(3,4-methylenedioxyphenyl)-2,3-dihydro-1-benzothiepine-4-carboxylate (0.80 g) in THF (10 ml) was added at 0° C. 70% 3-chloroperbenzoic acid (1.22 g), and the mixture was stirred at 0° C. for 15 minutes and then at room temperature for 2 hours. To the mixture was added an aqueous solution of sodium thiosulfate, and the mixture was stirred for a few minutes and extracted with dichloromethane. The organic layer was washed with sodium bicarbonate solution and saturated brine, dried with magnesium sulfate and concentrated under reduced pressure to give solid, which was recrystallized from THF/isopropanol to give colorless crystals of methyl 7-(3,4-methylenedioxyphenyl)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylate (763.3 mg).

Provenance & Evidence