Binuclear and polynuclear transition metal complexes with macrocyclic ligands 7. Directed step-by-step synthesis of novel unsymmetric macrocyclic ligands
Autor: | Nataliya E. Borisova, Marina D. Reshetova, V. V. Roznyatovsky, A. G. Buyanovskaya, Yu. A. Ustynyuk |
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Rok vydání: | 2005 |
Předmět: | |
Zdroj: | Russian Chemical Bulletin. 54:2219-2223 |
ISSN: | 1573-9171 1066-5285 |
DOI: | 10.1007/s11172-006-0100-y |
Popis: | Novel asymmetric macrocyclic Schiff bases were synthesized by the condensation of N,N′-bis(2-aminophenyl)-3,4-diphenylthiophene-2,5-dicarboxamide (1) with diformyl derivatives of phenol, furan, difurans, pyridine, pyrrole, and dipyrroles. The reaction proceeds in high yields and without by-products in methanol in the presence of inorganic and organic acids (proton-template condensation). In the case of monocyclic diformyl derivatives and di(5-formylfuran-2-yl) sulfide, the reaction occurs in 1,4-dioxane (templateless synthesis). The synthesized macrocycles were characterized by elemental analysis data and NMR and mass spectra. |
Databáze: | OpenAIRE |
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