Water → HCID 23034947, compound

Participants

Reaction Steps

To 200 ml of dichloromethane was dissolved 24.0 g (0.05 mol) of (coumarin-7-yl)diphenylsulfonium trifluoromethanesulfonate obtained in Example 1, and 18.4 g (0.1 mol) of potassium hexafluorophosphate and 200 ml of water was added thereto, followed by stirring at room temperature for 2 hours. Then, the solution was fractionated and 9.2 g (0.05 mol) of potassium hexafluorophosphate and 100 ml of water were further added to the obtained dichloromethane layer, followed by stirring at room temperature for 2 hours, and then fractionating the solution. The obtained dichloromethane layer was washed with 200 ml of water and concentrated to dryness under reduced pressure to obtain 23.8 g of objective substance as pale yellow glassy substance (yield: 98%).

Provenance & Evidence