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Facile syntheses of homothia- and homoazacalixarenes

✍ Scribed by Kazuaki Ito; Takanori Nagai; Yoshihiro Ohba; Tyo Sone


Publisher
Journal of Heterocyclic Chemistry
Year
2000
Tongue
English
Weight
520 KB
Volume
37
Category
Article
ISSN
0022-152X

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✦ Synopsis


Abstract

Decahomotetrathiacalix[6]arenes were conveniently prepared from the 2:2 cyclization reactions of bis(chloromethyl)phenol‐formaldehyde trimers with 1,2‐ethanedithiol in high yields. In contrast, the simi lar reactions of the trimers with 1,3‐propanedithiol instead of 1,2‐ethanedithiol gave 1:1 macrocycles, hexahomodithiacalix[3]arenes, in good yields. Homoazacalixarenes were also prepared from the analogous reactions using piperazines. These macrocycles adopt a cone‐like form as a preferable conformation in solution.


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ChemInform Abstract: Synthesis and Prope
✍ Kazuaki Ito; Yoshihiro Ohba 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 25 KB 👁 1 views

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