Reaction of diphenylketene (22) with 1 equiv of peracetic acid in CHzClz at 0" gave 14% of benzophenone (23) and 17% of benzhydryl acetate (24)(Scheme 111) in addition to considerable polymeric material. Although the polymeric material was not analyzed in this particular experiment, it is undoubtedly the polyester of benzilic acid which was also obtained in the ozonolysis of diphenlyketene, presumably via a-lactone 25.11 The ir ...
