Abstract
A series of medium ring-sized macrocycles 4a–4e bearing catechol-type moiety were synthesized readily by direct cyclization of di(acid chloride) 1 with diamine derivatives without high-dilution conditions followed by tandem Claisen rearrangement. Complexation of macrocycles 4 with 1-pyrene-boronic acid yielded their corresponding neutral macrocyclic boron complexes 5 with pyrene unit as fluorophore in high yields. Anion sensing properties of these neutral boron complexes were also investigated.
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More From: Journal of Inclusion Phenomena and Macrocyclic Chemistry
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