SCHEDULED MAINTENANCE
A novel host molecule p-[1-(4-hydroxyphenyl)-1-methylethyl]calix[8]arene. Synthesis and complexation properties in non-aqueous polar solution
Abstract
A novel deep-cavity calixarene,
p-[1-(4-hydroxyphenyl)-1-methylethyl]calix[8]arene 1 was
synthesized and its complexation with aromatic compounds was examined.
Reaction of p-[1-(4-methoxyphenyl)-1-methylethyl]phenol 2 with
paraformaldehyde under various conditions only resulted in
p-[1-(4-methoxyphenyl)-1-methylethyl]calix[8]arene 3, and no
corresponding calix[4]arene and calix[6]arene were detected. Removal of the
methyl in the ether groups of 3 afforded 1 in 80% yield. Solubilization,
fluorescence and photochemical probe studies demonstrated that 1 forms
inclusion complexes with a variety of aromatic compounds in polar
non-aqueous solutions.
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