B. Bennetau et al., SYNTHESIS OF 3-BENZOYLCYCLOHEXANONE, A KEY INTERMEDIATE FOR THE SYNTHESIS OF KETOPROFEN, Synthetic communications, 24(1), 1994, pp. 77-83
A simple and convenient synthesis of 3-benzoylcyclohexanone, a ketopro
fen precursor, is proposed. It consists of the preparation of 5-trimet
hylsilyl-3-cyclohexenone via disilylation of anisole followed by hydro
lysis and subsequent regiospecific benzoylation and hydrogenation.