期刊
TETRAHEDRON
卷 65, 期 35, 页码 7240-7248出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2009.01.106
关键词
-
资金
- National Institutes of Health [GM074031]
Guests covering a range of polarities were examined for their ability to bind to a water-soluble cavitand and trigger its assembly into a supramolecular capsule. Specifically the guests examined were: tridecane 2,1-dodecanol 3, 2-nonyloxy ethanol (ethylene glycol monononyl ether) 4,2-(2-hexyloxyethoxy) ethanol (di(ethylene glycol) hexyl ether) 5, 2-[2-(2 propoxyethoxy)ethoxy] ethanol (tri(ethylene glycol) propyl ether) 6, and bis [2-(2-hydroxyethoxy)ethyl] ether (tetra(ethylene glycol)) 7. In this series, guest 6 proved to signify the boundary between assembly and the formation of 2:1 complexes, and simple 1: 1 complexation. Thus, guests 2-5 formed relatively kinetically stable capsules, guest 6 formed a capsule that was unstable relative to the NMR timescale, and guest 7 formed a simple 1:1 complex. (C) 2009 Elsevier Ltd. All rights reserved.
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