Sodium Sulfite → HCID 18929406, compound

Participants

Reaction Steps

To a solution of 0.2 g of 5-(2,6-dichloro-4-trifluoromethylphenyl)-1-methyl-3-methylsulfenylpyrazole (compound 40) in 20 ml of anhydrous chloroform was slowly added 0.3 g of 70% m-chloroperbenzoic acid at room temperature, followed by stirring overnight. The reaction mixture was poured into 10% aqueous sodium sulfite solution, and the organic layer was separated off, washed with 5% aqueous sodium hydroxide solution and brine and dried over anhydrous magnesium sulfate. The solvent was thereafter distilled of under reduced pressure to give 0.3 g of the desired compound in the form of white crystals (quantitative crude yield).

Provenance & Evidence