Synthetic approaches to aromatic belts: Building up strain in macrocyclic polyarenes

David Eisenberg, Roy Shenhar, Mordecai Rabinovitz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

127 Scopus citations


This tutorial review discusses synthetic strategies towards aromatic belts, defined here as double-stranded conjugated macrocycles, such as [n]cyclacenes, [n]cyclophenacenes, Schlüter belt, and Vögtle belt. Their appeal stems, firstly, from the unique nature of their conjugation, having p orbitals oriented radially rather than perpendicular to the plane of the macrocycle. Secondly, as aromatic belts are model compounds of carbon nanotubes of different chiralities, a synthetic strategy towards the buildup of structural strain in these compounds could finally open a route towards rational chemical synthesis of carbon nanotubes. The elusiveness of these compounds has stimulated fascinating and ingenious synthetic strategies over the last decades. The various strategies are classified here by their approach to the buildup of structural strain, which is the main obstacle in the preparation of these curved polyarenes.

Original languageAmerican English
Pages (from-to)2879-2890
Number of pages12
JournalChemical Society Reviews
Issue number8
StatePublished - 22 Jul 2010


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