Synthesis and biological studies of complexes of 2- amino-N(2-aminobenzoyl) benzohydrazide with Co(II), Ni(II), and Cu(II)
作者:Saeed-Ur Rehman、Muhammad Ikram、Sadia Rehman
DOI:10.1007/s11458-010-0216-3
日期:2010.9
The present work is concerned with the synthesis and coordination compounds of 2-amino-N(2-aminobezoyl) benzohydrazide (ABH). The ligand was synthesized by the reaction of methylanthranilate and hydrazine in 2:1 molar ratio. It can be viewed as a modified form of hydrazide. The ligand was characterized by 1H-NMR, 13C-NMR, mass spectrometry, elemental analysis, and infrared studies. The ligand has got -NH2 moeity, the site for chelation. The complexes of Co(II), Ni(II), and Cu(II) chlorides and bromides were prepared. These complexes were characterized by elemental analysis, infrared, conductance, and magnetic susceptibility studies. Infrared spectra studies confirmed the formation of complexes, while elemental studies suggested the complexation of [M(ABH)X2] (where X = Cl− or Br−) composition. Knowing about the importance of -N-N- linkage in the biologically active compounds, the synthesized complexes were studied for their biological activity, and were found to be potentially strong in inhibition activity as compared to the neat ligand.
本研究涉及 2-氨基-N(2-氨基甲酰)苯甲酰肼(ABH)的合成和配位化合物。该配体是由甲基蒽酸酯和肼以 2:1 的摩尔比反应合成的。它可以被看作是一种改良形式的酰肼。配体通过 1H-NMR、13C-NMR、质谱、元素分析和红外研究进行了表征。配体具有 -NH2 介电性质,是螯合的位点。制备了 Co(II)、Ni(II) 和 Cu(II) 氯化物和溴化物的配合物。通过元素分析、红外光谱、电导和磁感应强度研究对这些配合物进行了表征。红外光谱研究证实了络合物的形成,而元素研究则表明了[M(ABH)X2](其中 X = Cl- 或 Br-)组成的络合物。由于知道 -N-N- 连接在生物活性化合物中的重要性,因此对合成的配合物进行了生物活性研究,结果发现与纯配体相比,这些配合物具有潜在的较强抑制活性。