Over the past three decades, there has been a notable increase in interest in carbon nanostructures, driven by their intriguing properties, particularly those of graphene and carbon nanotubes (CNTs). Concurrently, the synthesis of carbon-rich structures has undergone significant advancement due to their high demand, most notably through metal-catalyzed C-C coupling reactions. Nevertheless, the utilization of transition metal-catalyzed C-H activation reactions in the synthesis of carbon-rich compounds, such as belt-shaped compounds, remains yet unexplored. In order to investigate the feasibility of a carbonylation reaction via a double C-H activation, a trimeric acyclic methylene-bridged arene compound (1) was successfully functionalized with different directing groups (DG). The complete synthesis of compound 1 as well as preliminary results of the carbonylation reactions will be reported. This leaves considerable space for optimizations of nanocarbon families with potentially distinct properties and new alternative strategies for synthesizing CNTs.