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Synthesis and properties of sulfur-bridged analogs of p-tert-Butylcalix[4]arene

✍ Scribed by Tyo Sone; Yoshihiro Ohba; Kazuhiko Moriya; Hideaki Kumada; Kazuaki Ito

Publisher: Elsevier Science
Year: 1997
Tongue: French
Weight: 532 KB
Volume: 53
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(97)00700-x

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✦ Synopsis

p-terbButylcalix arene analogs in which up to four methylene bridges were replaced by sulfur bridge(s) were synthesized. NMR studies indicated that the thiacalixarenes were conformationally much more fle~dble than the parent calixarene in CDCh solution; the flexibility was greater with increasing number of the sulfur bridge. The thiacalixarenes serve as inclusion hosts for some organic compounds, forming 2:1 (host:guest) crystalline complexes in many cases.

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