Triptycenes with their predefined D3h-symmetry are excellent molecular building blocks to construct shape-persistent nanobelts having π-orbitals orthogonal to the ring plane. However, up to now, there are only a very few examples of fused and rigid iptycene nanobelts synthesized in several consecutive steps in overall yields below 1%. Here we present the simple one-step one-potapproach to an iptycene nanobelt, which forms in >2% and can readily isolated from the polymeric by-product by gel-permeation chromatography.