Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 12, Issue 16, Pages 4397-4406Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200501409
Keywords
chirality; circular dichroism; configuration determination; macrocycles; supramolecular chemistry
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A versatile system for preparing macrocyclic compounds with planar chirality is presented. In this system chiral diazacoronands are synthesized readily from lariat-type diesters 13 and 14 and unsymmetrical diamines 7, 8, 12, 15, and 16 under non-high-dilution conditions. The title compounds were subjected to structural analysis by X-ray crystallography and circular dichroism spectroscopy, and absolute configurations for two representative examples (compounds 2 and 3) were assigned by molecular modeling. The correctness of the theoretical approach was verified by the crystallographic results obtained experimentally.
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