Pillararene

Pillararenes are macrocycles composed of hydroquinone or dialkoxybenzene units (5 to 10) linked in the para position by methylene bridges. They are structurally similar to the cucurbiturils and calixarenes that play an important part in host–guest chemistry. The first pillararene was the five membered dimethoxypillar[5]arene.[1][2]

Chemical structure of pillar[5]arene
  1. ^ Ogoshi, T.; Kanai, S.; Fujinami, S.; Yamagisi, T.; Nakamoto, Y. (2008). "Para-bridged symmetrical pillar 5 arenes: Their Lewis acid catalyzed synthesis and host–guest property". J. Am. Chem. Soc. 130 (15): 5022–5023. doi:10.1021/ja711260m. PMID 18357989.
  2. ^ Cao, D.; Kou, Y.; Liang, J.; Chen, Z.; Wang, L.; Meier, H.; A Facile and Efficient Preparation of Pillararenes and a Pillarquinone. Angew. Chem. Int. Ed. 2009, 48, 9721-9723.