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IUPAC definition calixarenes:
Originally macrocyclic compounds capable of ****uming a
basket (or 'calix')
shaped conformation. They are
formed from p-hydrocarbyl...
- of
twelve or more atoms.
classical examples include the
crown ethers,
calixarenes, porphyrins, and cyclodextrins.
Macrocycles describe a large, mature...
- is
large enough to hold
other molecular hosts such as a
calixarene molecule. With a
calixarene guest different chemical conformations (cone, 1,2-alternate...
- and host, the
attraction being generally due to van der
Waals forces.
Calixarenes and
related formaldehyde-arene
condensates are one
class of
hosts that...
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compounds synthesized using the Wurtz–****ig
reaction include silylated calixarenes and vinylsilanes.
Wurtz reaction Wang,
Zerong (2010). "Wurtz–****ig Reaction"...
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coined by
Volker Boehmer in a 1994 review, to
describe the
chirality of
calixarenes arising from
their non-planar
structure in 3-D space. This phenomenon...
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reaction with
other molecules. The
first generation carcerands are
based on
calixarene hemicarcerands with 4
alkyl substituents on the
upper rim and 4 reactive...
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elaborate condensations ensue. With 4-substituted
phenols one
obtains calixarenes.
Phenol results in polymers. Many
amino acids react with formaldehyde...
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orientation and
geometry with
respect to the membrane. Ion
channels containing calixarenes of ring size 3 and 4 have both been reported. For calix[4]arene, two...
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substituents occupying a
benzylic position. It is
observed in
compounds such as
calixarenes and acridines. Peri-substitution
occurs in
naphthalenes for substituents...
