Explore: Calixarenes

be surprisingly efficient. Calixarenes are sparingly soluble as parent compounds and have high melting points. Calixarenes are characterised by a three-dimensional

includes many classes of molecules: cyclodextrins, calixarenes, pillararenes and cucurbiturils. Calixarenes and related formaldehyde-arene condensates (resorcinarenes

and pestle and the product recrystallised from the resulting paste. Calixarenes are the general category of macrocycle oligomers formed by hydroxyalkylation

host molecules." The term refers to many molecular hosts, including calixarenes and cyclodextrins and even some inorganic polymers such as zeolites.

a similar molecular shape with cucurbiturils include cyclodextrins, calixarenes, and pillararenes. Cucurbiturils are amidals (less precisely aminals)

methylene bridges. They are structurally similar to the cucurbiturils and calixarenes that play an important part in host–guest chemistry. The first pillararene

calixarenes (through the addition of a chiral substituent group on the top or bottom rim of the macrocycle,) the first inherently chiral calixarenes were

of twelve or more atoms. Classical examples include the crown ethers, calixarenes, porphyrins, and cyclodextrins. Macrocycles describe a large, mature

substituents occupying a benzylic position. It is observed in compounds such as calixarenes and acridines. Peri-substitution occurs in naphthalenes for substituents

elaborate condensations ensue. With 4-substituted phenols one obtains calixarenes. Phenol results in polymers. Many amino acids react with formaldehyde