Azatrioxacirculenes: Planar Anti-Aromatic Cyclooctatetraenes (pages 3898–3904)
Dr. Christian B. Nielsen, Dr. Theis Brock-Nannestad, Dr. Peter Hammershøj, Dr. Theis K. Reenberg, Dr. Magnus Schau-Magnussen, Denis Trpcevski, Thomas Hensel, Dr. Roberto Salcedo, Gleb V. Baryshnikov, Prof. Boris F. Minaev and Dr. Michael Pittelkow
Article first published online: 10 FEB 2013 | DOI: 10.1002/chem.201203113
Planar cyclooctatetraenes: The first synthesis of a new class of anti-aromatic planar cyclooctatetraenes is described: the azatrioxacirculenes (see scheme). The azatrioxacirculenes were fully characterised by using optical, electrochemical and computational techniques as well as by single-crystal X-ray crystallography. The aromatic/anti-aromatic nature of the planar cyclooctatetraenes is discussed and compared with the isoelectronic tetraoxacirculenes.