Abstract
Research on pillar[n]arenes has witnessed a very quick expansion. This emerging class
of functionalized macrocyclic oligoarenes not only offers host–guest properties due
to the presence of the central cavity, but also presents a wide variety of covalent
functionalization possibilities. This short review focuses on copillararenes, a subfamily
of pillar[n]arenes. In copillararenes, at least one of the hydroquinone units bears
different functional groups compared to the others. After having defined the particular
features of copillararenes, this short review compares the different synthetic strategies
allowing their construction. Some key applications and future perspectives are also
described.
1 Introduction
2 General Features of Pillar[5]arenes
3 Synthesis of Functionalized Copillar[4+1]arenes
4 Concluding Remarks
Key words
copillararenes - supramolecular chemistry - macrocycles - host–guest compounds - phenols