Improvement Method for Synthesis of <Emphasis Type="Italic">p-tert</Emphasis>-butylthiacalix[<Emphasis Type="Italic">n</Emphasis>]arenes; Effect of Using Base Catalyst with Carboxylic Acid |
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| Authors: | Yoshihiko Kondo Fumio Hamada |
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| Institution: | (1) Department of Material-Process Engineering and Applied Chemistry for Environments, Faculty of Engineering and Resource Science, Akita University, Tegata, Akita 010-8502, Japan |
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| Abstract: | The improved method for synthesis of p-tert-butylthiacalixn]arenes (TCnAs) by using precursor which is sulfur-bridged oligomer of p-tert-butylphenol with acetic acid and terephthalic acid as a template in a combination with base catalyst such as NaOH and NaH
gave much better yields for TC6A (10.6 %) and TC8A (7.8 %), respectively. Such stronger base NaH than NaOH could bring down
a reaction temperature for synthesis of TC8A. |
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| Keywords: | base catalyst calixarene sodium hydride thiacalixarene |
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