Nontemplate Synthesis of Two Novel 23-Membered N3O4-Donor Macrocycles
摘要:
[image omitted] A novel 23-membered heptadentate N3O4 Schiff base ligand has been prepared by [1+1] cyclocondensation of 1,2-bis(2'-aminophenoxy)-4-t-butylbenzene with 2,6-bis(2-formylphenoxymethyl)pyridine by a nontemplate procedure. Treatment of L1 with NaBH4 in EtOH/CHCl3 gave the di-amine macrocycle L2.
Characterisation of novel macroacyclic hexadentate (N<sub>4</sub>O<sub>2</sub> and N<sub>2</sub>O<sub>4</sub>) Schiff base ligands and their zinc(II), copper(II) and cobalt(II) complexes, with ligands derived from reduction
作者:Hassan Keypour、Hadi Amiri Rudbari、Reza Azadbakht、Ebrahim Abouzari Lotf
DOI:10.3184/030823409x457528
日期:2009.6
macrocyclic, hexadentate (N4O2 and N2O4) Schiff base ligands, 1,2-bis(2′-nitrophenoxy)benzene, 1,2-bis (2′-nitrophenoxy)-4-t-butylbenzene), 1,2-bis(2′-aminophenoxy)benzene and 1,2-bis(2′-aminophenoxy)-4-t-butyl-benzene have been synthesised, together with macroacyclic hexadentateligands formed from their reduction. Zinc(II), copper(II) and cobalt(II) complexes of the Schiff base ligands have also been
大环六齿(N4O2 和 N2O4)席夫碱配体、1,2-双(2'-硝基苯氧基)苯、1,2-双(2'-硝基苯氧基)-4-叔丁基苯)、1,2-双(2'-氨基苯氧基)苯和1,2-双(2'-氨基苯氧基)-4-叔丁基-苯以及通过它们的还原形成的大无环六齿配体已经合成。席夫碱配体的锌 (II)、铜 (II) 和钴 (II) 配合物也已制备,所有化合物均已通过光谱和元素分析进行表征。
Synthesis and Characterization of Novel 30-Membered Imine and Amine Macrocycles Derived from ortho-Aminophenyl Diamines and 2,6-Diformyl-4-chlorophenol
作者:Hadi Amiri Rudbari、Ali Moradi
DOI:10.1055/s-0029-1217087
日期:2010.1
Two novel macrocyclic tetraimine-diphenol Schiff bases were synthesized by [2+2] cyclocondensation of ortho-aminophenyl diamines [1,2-bis(2′-aminophenoxy)benzene and 1,2-bis(2′-aminophenoxy)-4-tert-butylbenzene] with 2,6-diformyl-4-chlorophenol (dcp). Two novel tetraamine-diphenol macrocycles were obtained by reduction of the imine analogues with sodium borohydride in methanol/chloroform. o-aminophenyl
Four Novel 30-Membered Imine and Amine Macrocycles Derived from<i>Ortho</i>-Aminophenyl Diamines
作者:Hassan Keypour、Hadi Amiri Rudbari、Reza Azadbakht
DOI:10.1080/00397910903097328
日期:2010.4.26
Two novel macrocyclic tetra-imine-diphenol Schiff base (H2L1 and H2L2) were synthesized by [2+2] cyclocondensation of ortho-aminophenyl diamines [1,2-bis(2'-aminophenoxy)benzene (I) and 1,2-bis(2'-aminophenoxy)-4-t-butylbenzene (II)] with 2,6-diformyl-4-methylphenol. Two novel tetra-amine-diphenol macrocycles (H2L3 and H2L4) have been obtained by reduction of the imine analogs with NaBH4 in MeOH/CHCl3.
Synthesis, characterization, and electrochemical study of two new macroacyclic Schiff bases and their copper(II) and zinc(II) complexes
作者:Hassan Keypour、Maryam Shayesteh、Davood Nematollahi、Laura Valencia、Hadi Amiri Rudbari
DOI:10.1080/00958972.2010.527963
日期:2010.12.10
Two new potentially octadentate N2O6 Schiff-base ligands 2-((E)-(2-(2-(2-((E)-2-hydroxy-3-methoxybenzylideneamino)phenoxy)phenoxy)phenylimino)methyl)-6-methoxyphenol H2L1 and 2-((E)-(2-(2-(2-((E)-2-hydroxy-3-methoxybenzylideneamino)phenoxy)-4-tert-butylphenoxy)phenylimino)methyl)-6-methoxyphenol H2L2 were prepared from the reaction of O-Vaniline with 1,2-bis(2'-aminophenoxy)benzene or 1,2-bis(2'-aminophenoxy)-4-t-butylbenzene, respectively. Reactions of H2L1 and H2L2 with copper(II) and zinc(II) salts in methanol in the presence of N(Et)3 gave neutral [CuL1] center dot 0.5CH2Cl2, [CuL2], [ZnL1] center dot 0.5CH2Cl2, and [ZnL2] complexes. The complexes were characterized by IR spectra, elemental analysis, magnetic susceptibility, ESI-MS spectra, molar conductance (m), UV-Vis spectra and, in the case of [ZnL1] center dot 0.5CH2Cl2 and [ZnL2], with 1H- and 13C-NMR. The crystal structure of [ZnL1] center dot 0.5CH2Cl2 has also been determined showing the metal ion in a highly distorted trigonal bipyramidal geometry. The electrochemical behavior of H2L2 and its Cu(II) complex, [CuL2], was studied and the formation constant of [CuL2] was evaluated using cyclic voltammetry. The logarithm value of formation constant of [CuL2] is 21.9.