m-Chloroperbenzoic acid → HCID 59392350, compound

Participants

Reaction Steps

90 mg (0.43 mmol) Ethyl-(4-Methoxy-benzo[d]isothiazol-3-yl)-amine, prepared in analogy to compound example 32, was dissolved in 10 ml dichloromethane. The solution was cooled to 0 C and 100 mg of a 70% m-chlor-perbenzoic acid was added portion wise. The cooling bath was removed and stirring was continued for 30 min at room temperature. The solution was poured into Na2CO3-solution. The layers were separated and the organic layer was washed with Na2CO3-solution and water. The organic layer was dried over NaSO4 and concentrated. The crude product was purified by reverse-phase HPLC (eluent acetonitrile/water) to yield 40 mg (0.18 mmol) of the title product.

Provenance & Evidence