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The key building block of our flexible approach to the modular synthesis of substituted cycloparaphenylenes (CPPs) is in the spotlight. From this stage, the depicted substituted [8]‐ and [10]CPPs were synthesised in two more steps, macrocyclization and reductive aromatization. The optoelectronic properties of these nanorings were compared to those of the parent CPPs, as well as the tube‐like solid...
Herein, we report a modular synthesis providing access to substituted cycloparaphenylenes (CPPs) of different sizes. A key synthon introducing two geminal ester units was efficiently prepared by [2+2+2] cycloaddition. This building block can be conveniently converted to macrocyclic precursors controlling the ring size of the final CPP. Efficient reductive aromatization through single‐electron transfer...
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