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Original Articles

Synthesis, Separation and Characterization of Thiacalix[4]arenes Diastereomers

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Pages 150-155 | Received 17 May 2007, Accepted 29 Jun 2007, Published online: 20 Feb 2008
 

Abstract

Two different 1 , 3-Distal thiacalix[4]arenas were prepared by the reaction of thiacalix[4]arene with phenacyl and/or p-nitro phenacyl bromide in acetone or acetonitrile in the presence of dry CsOH. The prepared 1, 3-distal disubstituted thiacalixarenes afforded two pairs of diastereomers upon brominating in chloroform. The obtained diastereomers were separated by fractional crystallization in a mixture dichloromethane-acetone.

Acknowledgments

This work was supported by the Bibliotheca Alexandrina-Center for special studies and programs under Grant No. (04041083).

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