Iodine → Benzophenone

Participants

Reaction Steps

After 8.7 g (357.06 mmol) of Mg and a small amount of iodine were dissolved in 200 ml of THF, 71.9 g (324.6 mmol) of 5-bromo-2-chloroanisole dissolved in 500 ml of THF was added dropwise to the resulting solution. After addition, the resulting mixture was refluxed for 3 hours to prepare a Grignard reagent which was then cooled to room temperature. After that, the prepared Grignard reagent was added dropwise to 50.2 g (357.06 mmol) of benzoyl chloride and stirred for 5 hours. After a reaction, the reaction solution was washed with water, the solvent was removed, and the obtained product was purified by column chromatography to obtain a benzophenone derivative represented by the following formula (32) as 32.0 g (129.8 mmol, yield of 40%) of a white solid.

Provenance & Evidence