We have synthesized the first example of an asymmetric tetraTTF-calixpyrrole. This system features Ouroborand qualities due to selfcomplexation with the pyridine substituent. This forces the usually highly flexible calixpyrrole into a preorganized conformation with improved explosive detection ability.
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5th International Symposium on Macrocyclic and Supramolecular Chemistry, 2010