Abstract
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 language | English |
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Pages (from-to) | 3345-3348 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 41 |
Issue number | 18 |
DOIs | |
Publication status | Published - 2000 Apr 29 |
Externally published | Yes |
Bibliographical note
Funding Information:This research was fully supported by the Korea Research Foundation (BSRI Grant No. 1999-015-DP0203).
Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
ASJC Scopus subject areas
- Biochemistry
- Drug Discovery
- Organic Chemistry