Macrocyclic 1,8‐Anthrylene–Ethynylene Oligomers: Three‐Dimensional π‐Conjugated Architectures

In the swing: The Sonogashira coupling reaction has been used to synthesize a cyclic tetramer composed of 1,8-anthrylene and ethynylene units. This tetramer adopts a diamond-prism structure and interconverts between enantiomers by skeletal swing (see picture); the energy barrier to interconversion is approximately 38 kJ mol−1. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z53647_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.