Synthesis, molecular structure and electrochemical properties of nickel(<scp>ii</scp>) benzhydrazone complexes: influence of ligand substitution on DNA/protein interaction, antioxidant activity and cytotoxicity
作者:Ramasamy Raj Kumar、Rengan Ramesh
DOI:10.1039/c5ra19530f
日期:——
A series of new nickel(II) benzhydrazone complexes having the general formula [Ni(L)2] (where L = thiophene aldehyde benzhydrazone) have been synthesized via the reaction of Ni(OAc)2·4H2O with 2 equivalents of benzhydrazone ligands in a DMF/ethanol medium. The complexes have been characterized by analytical, spectral (FT-IR, UV-vis, NMR and ESI-mass) and single-crystal X-ray crystallography methods
A facile catalytic one-pot synthesis of N-acylhydrazones via acceptorless dehydrogenativecoupling of readily available alcohols and benzohydrazides (R2CONHNH2) using arene ruthenium (II) complexes has been described. The coupling of alcohols with various benzohydrazides using ruthenium catalysts provide a wide range of N-acylhydrazones in good to excellent yields (63–93%; 32 examples). The present
已经描述了使用芳烃钌 (II) 配合物通过容易获得的醇和苯并酰肼 (R 2 CONHNH 2 ) 的无受体脱氢偶联,轻松催化一锅法合成N-酰基腙。使用钌催化剂将醇与各种苯并酰肼偶联提供了广泛的N-酰基腙具有良好至极好的收率(63–93%;32 个例子)。本协议提供了高选择性的腙,没有任何烷基化产物,并耐受一系列官能团。对照实验表明,该机制通过醇的无受体脱氢进行,氢和水是唯一的副产物。克级合成说明了本策略的有用性。
Synthesis, antiproliferative activity and apoptosis-promoting effects of arene ruthenium(II) complexes with N, O chelating ligands
New halfsandwich arene ruthenium(II) complexes of the type [Ru(arene)Cl(L)] (where arene = benzene and p-cymene, L = thiophene benzhydrazone ligands) have been synthesized from the reactions of the neutral precursor [Ru(arene) (μ-Cl) Cl]2 and the corresponding benzhydrazone ligand. All the complexes were completely characterized by elemental analysis and additionally by IR, UV–Vis, 1H NMR and ESI-MS
由中性前体[Ru]的反应合成了[Ru(arene)Cl(L)]类型的新的半夹心芳烃钌(II)配合物(其中芳烃=苯和对-Cymene,L =噻吩苯并zone配体) (芳烃)(μ-Cl)Cl] 2和相应的苯并zone配体。所有的络合物都通过元素分析和红外,紫外-可见,1完全表征。1 H NMR和ESI-MS光谱法。配合物6和7的固态结构通过单晶X射线衍射分析确定,其在金属中心周围表现出典型的伪八面体几何形状。评价了该复合物在癌细胞(HeLa,MDA-MB-231和Hep G2)和非癌细胞(NIH3T3)上的抗增殖活性。通常,与引入H,Cl和Br取代基的配合物相比,含有释放电子的OCH 3取代基的配合物具有潜在的抗癌活性。而且,p-苏木精复合物比苯衍生物具有更高的细胞毒性,这表明芳烃上的取代基在化合物的生物活性中起着至关重要的作用。此外,通过AO-EB,Hoechst 33258染色和膜联蛋白-V