This investigation was undertaken in the hope of obtaining 1', 9-dimethylene-1, 2- benzanthracene by application of the general o-halide scheme of synthesis, l starting with the condensation of o-chlorophenylmagnesium bromide with perinaphthanone-7. Since the work was initiated a similar series of reactions proceeding from acenaphthenone has been applied successfully to the synthesis of 1', g-methylene-1, 2-benzanthra~ ene.~ As will be ...
