m-Chloroperbenzoic acid → HCID 18930400, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 2,3-dibromo-5-(p-chlorophenyl)-4-[(difluoromethyl)thio]pyrrole (125 mg, 0.030 mmol) in chloroform is treated with 3-chloroperoxybenzoic acid (86 mg, 60%, 0.30 mmol) at 0° C. The reaction mixture is stirred for one hour at 0° C., warmed to room temperature, stirred overnight, poured into saturated sodium metabisulfite solution and diluted with a methylene chloride/water mixture. The organic phase is separated, washed with saturated sodium hydrogen carbonate solution, dried over anhydrous sodium sulfate and concentrated in vacuo to obtain a residue. Flash chromatography of the residue using silica gel and a 1:10 ethyl acetate/hexanes solution gives the title product as a yellow solid (68 mg, mp 180° C. (dec)) which is identified by 1HNMR and 13CNMR spectral analyses.

Provenance & Evidence