Binuclear and polynuclear transition metal complexes with macrocyclic ligands - 3. New polydentate macrocyclic ligands in reactions of 4-alkyl-2,6-diformylphenols with 1,2-diaminobenzenes

被引：9

作者：

Borisova, NE ^{[1
]}

Reshetova, MD ^{[1
]}

Ustynyuk, YA ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2004年 / 53卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

polydentate ligands; Schiff's bases; 2,6-diformylphenols; DFT method;

D O I：

10.1023/B:RUCB.0000024848.03470.25

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The mechanism of abnormal condensation of 2,6-diformyl-4-R-phenois with 1,2-diaminobenzenes accompanied by the reduction of two of four double Cdouble bondN bonds in macrocyclic Schiff's bases formed was studied by DFT (gradient-corrected PBE functional, TZ2p basis set). In the first step, [1+1] Schiff's base is formed and disproportionates further to afford amine and benzoimidazolylphenols. Two new macrocyclic polydentate ligands containing two CH2-NH moieties in the rings were synthesized. The reduction of one of these ligands with sodium borohydride gave the new macrocyclic ligand, whose structure and conformations were studied by the DFT method.

引用

页码：181 / 188

页数：8

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