Iodine → 3'-Iodo-5'-(trifluoromethyl)-2,2,2-trifluoroacetophenone

Participants

Reaction Conditions

Reaction Steps

A mixture of 2,2,2-trifluoro-1-[3-(trifluoromethyl)phenyl]ethanone (2.42 g), 30% fuming sulfuric acid (6.0 mL) and iodine (1.90 g) was stirred at 50° C. for 5 hours. After the completion of the reaction, the mixture was poured into ice-water (10 g) and extracted with diethyl ether (20 mL×1). The organic layer was washed with saturated aqueous sodium sulfite solution (10 mL×1) and brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure to provide the title compound as a pale yellow oil (2.56 g).

Provenance & Evidence