Hydrogen Peroxide → HCID 178481654, compound

Participants

Reaction Steps

2-[1,2-dihydro-1-methyl-6-methylthio-2-oxopyridine-3-carbonyl]-3-hydroxy-2-cyclohexen-1-one (1.2 g, 4.1 mmol), sodium tungstate (0.13 g, 0.4 mmol) and aqueous 35% hydrogen peroxide (0.48 g, 5.4 mmol) were dissolved in methanol (2 mL), and the mixture was stirred for 5 hours at room temperature. The mixed solution was poured into a sodium hydrogensulfite solution, and extracted with chloroform. The obtained organic layer was dried over anhydrous magnesium sulfate, the inorganic substance was separated by filtration, and then the solvent was distilled off under reduced pressure. Thus obtained residue was purified by column chromatography to obtain 0.36 g of 2-[1,2-dihydro-1-methyl-6-methylsulfinyl-2-oxopyridine-3-carbonyl]-3-hydroxy-2-cyclohexen-1-one (1.2 mmol, yield: 29%) and 0.16 g of 2-[1,2-dihydro-1-methyl-6-methylsulfonyl-2-oxopyridine-3-carbonyl]-3-hydroxy-2-cyclohexen-1-one (0.49 mmol, yield: 12%).

Provenance & Evidence