A library of acylhydrazone iron chelators was synthesized and tested for its ability to inhibit the growth of a chloroquine-resistant strain of Plasmodium falciparum. Some of these new compounds are significantly more active than desferrioxamine DFO, the iron chelator in widespread clinical use and also than the most effective chelators. (c) 2005 Elsevier Ltd. All rights reserved.
Acylhydrazones of o-Oxy- and o-Aminoaldehydes and Ketones as Tridentate Complexing Agents
作者:Luigi Sacconi
DOI:10.1021/ja01117a519
日期:1953.11
Synthesis, characterization, crystal structures, Hirshfeld surface analysis, DFT computational studies and catalytic activity of novel oxovanadium and dioxomolybdenum complexes with ONO tridentate Schiff base ligand
oxovanadium and dioxomolybdenum Schiffbasecomplexes, VOL(OMe) and MoO2L, were synthesized through the reaction of a ONO tridentate Schiffbaseligand (H2L) derived from the condensation of 5-bromosalicylaldehyde and nicotinic hydrazide with oxo and dioxo acetylacetonate salts of vanadium and molybdenum, [VO(acac)2 and MoO2(acac)2], respectively. The synthesized ligand and complexes were characterized by various
通过由5-溴水杨醛和烟碱醛缩合衍生的ONO三齿席夫碱配体(H 2 L)反应,首次合成了两种新的氧钒和二氧钼席夫碱配合物VOL(OMe)和MoO 2 L。酰肼与钒和钼的羰基和二羰基乙酰丙酮酸盐[VO(acac)2和MoO 2(acac)2 ]分别形成。合成的配体和配合物通过各种光谱技术进行表征,例如FT-IR,1 H NMR,1313 C NMR,元素分析(CHN)和最真实的单晶X射线衍射分析(SC-XRD)。从衍射研究中收集到的数据表明,MoO 2 L中中心金属离子周围的几何形状呈八面体形。Hirshfeld表面分析探讨了负责晶体堆积的非共价相互作用。DFT在B3LYP / Def2-TZVP的理论水平上对合成化合物进行的理论计算表明,计算结果与实验结果相符。此外,研究了两种配合物的催化活性,以使用过氧化氢尿素(UHP)在乙腈中的苄醇选择性氧化。