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E. V. Rakhmanov, A. V. Khoroshutin, A. A. Bobylyova, E. V. Lukovskaya, A. V. Anisimov, A. A. Abramov
Synthesis and extraction properties
of oxathiacrown-ethers based on
allylaromatic precursors
Abstract
12-Membered substituted dioxadithiocrown ethers were
synthesized by reaction of 2-(2,3-dibrompropyloxy)benzaldehyde, 2-(2,
3-dibrompropyloxy)naphthalene obtained by bromination of corresponding allyl
ethers, with 1,8-dimercapto-3,6-dioxaoctanol. However,
2-(2,3-dibrompropyloxy)imidazole reacts with the same dithiol to form the
product of dehydrocyclodimerization of the dithiol -
1,8,11,18-tetraoxa-4,5,14,15-tetrathiacycloicosane. 20-membered macrocycle
extracts Ag(I) cation from picrate solution, whereas 12-membered one does from
nitric acid and sodium nitrate solutions.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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