反应详情

A solution of 2-(p-chlorophenyl)-5-[(trifluoromethyl)thio]pyrrole (1.94 g, 0.00699 mol) in chloroform is cooled, treated with a solution of bromine (1.16 g, 0.00699 mol) in chloroform, stirred for two hours, washed with water and brine, dried over anhydrous magnesium sulfate and concentrated in vacuo to obtain a dark syrup. Flash chromatography of the syrup using silica gel and a 1:10 ethyl acetate/hexanes solution gives the title product as a pink syrup (2.0 g) which is identified by 1HNMR and 13CNMR spectral analyses.

1. washwashed with water and brine
2. dry with materialdried over anhydrous magnesium sulfate
3. concentrationconcentrated in vacuo
4. customto obtain a dark syrup