Host-guest properties pillar arenes

Ogoshi T, Kanai S, Fujinami S, Yamagishi T-a, Nakamoto Y. para-Bridged symmetrical pillar[5]arenes Their lewis add catalyzed synthesis and host—guest property. J Am Chem Soc 2008 130 5022-3. 

Host-Guest Properties of Mono-functionalized Pillar[5]arenes... 

As with pillar[5]arenes, modification of 12 functional substituents on pil-lar[6]arenes is a useful way to improve their host-guest property. Huang and co-workers synthesized a pillar[5]arene with 12 mono(ethylene oxide) substituents (H5.39 Figure 5.33). °... 

Host-Guest Properties of Larger Pillar[n]arene Homologs ( = 7-14)... 

Similar to calix[n]arenes, porphyrins have been known to be one of the support pillars of supramolecular chemistry attributing suitable photoactive and electroactive properties to the molecular structures designed around them for building artificial molecular devices. Thus, various metallated and free base porphyrin-calixarene assemblies could afford attractive scaffolds for application in the areas of multipoint molecular recognition, receptors, host-guest chemistry, catalysis and photoinduced electron transfers. 

Macrocyclic compounds act as main players in the field of supramolecular chemistry because they form organized supramolecular assemblies by cavity-size dependent host-guest interactions. Therefore, development of the field of supramolecular chemistry has been pushed by the discovery of four key macrocycles, the cyclodextrins, crown ethers, calix[n]arenes and cucurbit[n]urils. In 2008, we introduced a new class of macrocycles Pillar[n]arenes . On account of their novel cross section of properties and great potential, pillar[n]arenes are becoming dominant in the field of macrocyclic chemistry and are opening up a new supramolecular chemistry, which cannot be achieved by the other four key players. The field called pillar[ ]arene chemistry was started in 2008, and there was a small handful of players in the beginning. Fortunately, many chemists have joined the field of pillar[n]arene chemistry since 2012 and, now, pillar[n]arene chemistry attracts the attention of numerous researchers. 

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