Water → HCID 15036005, compound

Participants

Reaction Steps

0.2 g (5.5 mmol) of 6-trifluoromethylthio-3,4-dihydro-2,2-dimethyl-trans-4-(2-oxo-1-pyrrolidinyl)-2H-benzo(b)pyran-3-ol are dissolved in 7 ml of methanol and a suspension of 1 g of Oxone® in 5 ml of water is added at 0° C. with stirring. After stirring for 5 days at room temperature, the mixture is diluted using 20 ml of water and extracted using chloroform (3×50 ml). After drying and evaporating, 0.2 g of white crystals remain. By means of HPLC (eluent chloroform:methanol 98 : 2), 120 mg (55 % of theory) of 6-trifluoromethylsulphonyl-3,4-dihydro-2,2-dimethyl-trans-4-(2-oxo-1-pyrrolidinyl)-2H-benzo(b)pyran-3-ol and 15 mg of 6-trifluoromethylsulphinyl-3,4-dihydro-2,2-dimethyl-trans-4-(2-oxo-1-pyrrolidinyl)-2H-benzo(b)-pyran-3-ol are obtained.

Provenance & Evidence