Bull. SOC. Chim. Belg., 69, 4 fig., pp. 534-548, 1960 I- ... SYNTHESES DANS LE DOMAINE DES COMPOSES POLYCYCLIQUES AROMATIQUES (*) ... XVIII - 1,2,3,4,5,6-TRIBENZOFLUORhNE (OU TRIBENZO[a,C,g] FLUORhNE) ET 1,2,3,4,5,6,7,8-TiTRABENZOFLUOR&NE (OU TkTRA- BENZO [a,c,g,i] FLUO ~ NE ) ... R. DE RIDDER et RH MARTIN (Bruxelles) ... ABSTRACT This paper describes the synthesis of the following compounds: tribenzo [a,c,g] fluorene (I ...