Abstract
A series of functionalized triptycene scaffolds has been synthesized using 2‐formyltriptycene and 5‐(2‐triptycenyl)dipyrromethane. Using these two key precursors, mixed condensations with different aromatic aldehydes and aryl‐dipyrromethanes gave access to all members of triptycenyl meso‐substituted porphyrins (AB3‐, A2B2‐, A3B‐, and A4) and allowed their photophysical and electrochemical characterization. Additionally, the first crystal structure of tetratriptycenylporphyrin is reported. 2‐Formyltriptycene was also used for the preparation of two different mono‐BODIPY‐triptycene compounds, while 2,6,14‐triiodotriptycene was used in Suzuki and Sonogashira cross‐coupling reactions to obtain threefold BODIPY‐substituted triptycene–dye conjugates. The mono‐ and tri‐BODIPY‐substituted triptycene scaffolds exhibit good absorption in the visible to NIR region indicating the potential use of the triptycene scaffold as the core of multi‐dye light‐harvesting systems.
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