Two novel 1,3-calix[4]azacrowns

Jong Seung Kim, Won Ku Lee, Kwanghyun No, Zouhair Asfari, Jacques Vicens

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)


Two 1,3-calix[4]azacrowns-5 in the 1,3-alternate conformation have been constructed from calix[4]arene. They formed 1:1 endo and 1:2 endo-endo complexes with NH4+ in CDCl3. Comparison with 1,3-calix[4]-bis-crown-5 lead us to conclude a better binding by replacement of the central O atom by NH group in the crown. (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)3345-3348
Number of pages4
JournalTetrahedron Letters
Issue number18
Publication statusPublished - 2000 Apr 29
Externally publishedYes

Bibliographical note

Funding Information:
This research was fully supported by the Korea Research Foundation (BSRI Grant No. 1999-015-DP0203).

Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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