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Molecules 2003, 8(12), 894-900; doi:10.3390/81200894

Synthesis and Characterization of Benzo-15-Crown-5 Ethers with Appended N2O Schiff Bases

REQUIMTE/ Departamento de Química, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
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Received: 14 July 2003 / Revised: 30 October 2003 / Accepted: 3 November 2003 / Published: 31 December 2003
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Abstract

New derivatives of benzo-15-crown-5 with flexible appended N2O unsymmetrical Schiff bases were prepared by a two step procedure which involves: (i) preparation of N2O Schiff bases by condensation of hydrazine with salicylaldehyde, 3-methoxysalicylaldehyde or 2-hydroxy-1-naphtaldehyde and (ii) reaction of the resulting NH2 functionalized compounds with 4’-formyl-benzo-15-crown-5.
Keywords: Schiff base ligands; crown ethers; hetero-binucleating ligands; hydrazine; salicylaldehyde Schiff base ligands; crown ethers; hetero-binucleating ligands; hydrazine; salicylaldehyde
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Sousa, C.; Freire, C.; De Castro, B. Synthesis and Characterization of Benzo-15-Crown-5 Ethers with Appended N2O Schiff Bases. Molecules 2003, 8, 894-900.

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