2-Benzoyl-4-chlorobenzoic acid → 2-Benzyl-4-chlorobenzoic acid

Participants

Reaction Steps

To a solution of 5.0 g of cupric sulfate in 3 liters of concentrated ammonium hydroxide solution were added 300 g (4.6 mol) of activated zinc dust and 100 g (0.42 mol) of 2-benzoyl-4-chlorobenzoic acid. The mixture was refluxed for 3 days, during which the volume was maintained by the addition of concentrated ammonium hydroxide solution. The mixture was cooled, and the excess zinc was removed by filtration. The filtrate was acidified by the addition of concentrated hydrochloric acid to a pH of 3. The resulting precipitate was collected by filtration and dried to constant weight to give a white solid, mp 142°-144° C.

Provenance & Evidence