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
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