Summary 1, 2-Benzofulvene (6a) and 1, 2, 3, 4-dibenzofulvene (7a) as well as the corresponding 6-methyl-and 6-phenyl-derivatives are prepared by reaction of sodium indenide and sodium fluorenide with l-chloroalkyl acetates (3), followed by elimination with KOC (CH,),. The over-all yields are comparable with the results of the fulvene series and are in most cases considerably higher than the yields of the Thiele-method.
