Trans- and cis-1,3,5,7-Tetraazadecalin (TAD): A new and strong binding mode in cis-TAD chelates of heavy metal ions

Ofer Reany, Mikhail Grabarnik, Israel Goldberg, Sarah Abramson, Alexander Star, Benzion Fuchs

Research output: Contribution to journalArticlepeer-review

Abstract

trans- and cis-1,3,5,7-tetraaradecalin (TAD) (2 and 3) were isolated and structurally characterized (VT-NMR). One of the cis-TAD derivatives intended to act as 'cores' of new host systems, 2,6-dihydroxymethyl)-cis-TAD (5), gave heavy metal ion (Cd(II), Pb(II), etc.) complexes with remarkably high binding constants, as measured by polarography. X-ray analyses of the Cd(II) (7a) and Pb(II) (7b) complexes revealed a new, unique binding mode.

Original languageEnglish
Pages (from-to)8073-8076
Number of pages4
JournalTetrahedron Letters
Volume38
Issue number46
DOIs
StatePublished - 17 Nov 1997
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported in part by grants from the Israel Science Foundation, the Ministry of Science and the Ministry of Absorption (to M. G.). The invaluable help of Prof. E. Eisner with the electrochemical methods and the skillful assistance of Ms. Zafra Stein with the X-ray measurements are gratefully acknowledged.

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