Ketones II-IV were synthesized by the Friedel-Crafts reaction by acylation of 2- methylcoumaran (compound I) with the chloranhydrides of to-phenylalkane acids in the presence of anhydrous aluminum chloride. The structures of the newly synthesized compounds II-IV were confirmed by UV, IR, and PMR spectral data; the starting compound, I, has been described previously [2]. Increases in the number of methylene groups ...
