Binuclear and polynuclear transition metal complexes with macrocyclic ligands 7. Directed step-by-step synthesis of novel unsymmetric macrocyclic ligands
作者:V. V. Roznyatovsky、N. E. Borisova、M. D. Reshetova、A. G. Buyanovskaya、Yu. A. Ustynyuk
DOI:10.1007/s11172-006-0100-y
日期:2005.9
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
通过 N,N'-双(2-氨基苯基)-3,4-二苯基噻吩-2,5-二甲酰胺 (1) 与苯酚、呋喃、二呋喃、吡啶、吡咯的二甲酰基衍生物缩合合成了新型不对称大环席夫碱,和双吡咯。在无机和有机酸(质子-模板缩合)存在下,反应在甲醇中以高产率进行且无副产物。在单环二甲酰基衍生物和二(5-甲酰基呋喃-2-基)硫化物的情况下,反应发生在 1,4-二恶烷(无模板合成)中。合成的大环化合物通过元素分析数据和 NMR 和质谱进行表征。