Syntheses and properties of tetraaza-, diaza-, tetraoxa-, and dioxa-metacyclophanes

Authors
Ito, K Ohba, Y Shinagawa, E Nakayama, S Takahashi, S Honda, K Nagafuji, H Suzuki, A Sone, T
Citation
K. Ito et al., Syntheses and properties of tetraaza-, diaza-, tetraoxa-, and dioxa-metacyclophanes, J HETERO CH, 37(6), 2000, pp. 1479-1489
Citations number
12
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF HETEROCYCLIC CHEMISTRY
ISSN journal
0022152X → ACNP
Volume
37
Issue
6
Year of publication
2000
Pages
1479 - 1489
Database
ISI
SICI code
0022-152X(200011/12)37:6<1479:SAPOTD>2.0.ZU;2-T
Abstract
Metacyclophanes were prepared by cyclization reactions between bis(chlorome thyl) compounds and piperazine, primary amines, or ethylene glycol. The H-1 nmr relaxation rime (T-1) measurements indicated that the macrocycles feat ure the up and down motion of the aromatic units around the XCH2Ar (X = N, O) methylene moieties as the axes. Mctacyclophanes incorporating piperazine units showed high complexation ability for alkaline metal cations.