Issue 4, 1990
From the journal:

Journal of the Chemical Society, Perkin Transactions 1

Synthetic ionophores. Part 4. Phase transfer-catalysed synthesis of pyridine-containing macrocycles and their ionophore character

Harjit Singh,   Subodh Kumar,   (Miss)Anupa Jain  and  Paramjit Singh  

Abstract

Phase transfer-catalysed reactions of pyridine-2,6-dicarboxylic acid dichloride and 2,6-dichloropyridine with oligo(ethylene glycols) provide macrocycles in yields higher than those reported by high dilution or transesterification methods. Extraction and transport studies of some of these macrocycles towards picrates of Li+ Na+, K+, Tl+, Mg2+, Ca2+, and Ba2+ by using chloroform as the nonpolar layer showed that two examples, the pyridino crown ethers (3a) and (5b), transport barium and thallium picrates respectively with significant selectivity.

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Article information

DOI
https://doi.org/10.1039/P19900000965
Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1990, 965-968

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Synthetic ionophores. Part 4. Phase transfer-catalysed synthesis of pyridine-containing macrocycles and their ionophore character

H. Singh, S. Kumar, A. Jain and P. Singh, J. Chem. Soc., Perkin Trans. 1, 1990, 965 DOI: 10.1039/P19900000965

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