m-Chloroperbenzoic acid → HCID 18929415, compound

Participants

Reaction Steps

To a solution of 0.3 g of 5-(2,6-dichloro-4-trifluoromethylphenyl)-1-methyl-3-methylsulfenylpyrazole (compound 33) in 20 ml of anhydrous chloroform was slowly added 0.3 g of 70% m-chloroperbenzoic acid at -10° C. with stirring, followed by stirring for 3 hours. The reaction mixture was poured into saturated aqueous sodium hydrogencarbonate solution, and the organic layer was separated off and washed with a 5% aqueous sodium hydroxide solution and with brine. After drying the layer over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure, giving 0.3 g of the desired compound in the form of white crystals (quantitative crude yield).

Provenance & Evidence