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2'-(1-萘亚甲基)-2-羟基苯甲酰腙的合成、晶体结构及抑菌活性 总被引:2,自引:1,他引:1
某些席夫碱化合物具有抗肿瘤、抗菌等生物活性,在生化反应中起到转氨基作用,碳氨双键是该类化合物具有抗菌活性的效应基团。而含-CONHN=CH-基团的酰腙类化合物具有特殊的生物活性和强配位能力,在农药、医药和分析试剂等方面一直是人们广泛研究的对象,某些该类化合物在治疗一些疾病和抑菌方面已有广泛的应用。为了进一步探索高效抗菌药物,本研究组在从事席夫碱及腙类化合物的合成、生物活性的测定等工作中合成了标题化合物;并测定了标题化合物对枯草芽孢杆菌、肺炎克氏菌、铜绿脓杆菌、大肠杆菌和金黄色葡萄球菌的抑菌活性。 相似文献
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In ethanol, a mononuclear cobalt(Ⅱ) complex incorporating 2′-(2-Thienylidene)-2-Hydroxybenzoylhydra-zide has been synthesized and characterized by IR, UV-Vis, elemental analysis and X-ray crystal structure analysis. The crystal belongs to triclinic system, space group P1 with cell constant, a=1.230 69(10) nm, b=1.329 18(11) nm, c=1.330 56(11) nm, α=113.702(2)°, β=91.590(2)°, γ=100.846(2)°, V=1.944 4(3) nm3, Z=2, μ=0.662 mm-1, Dc=1.482 g·cm-3, F(000)=896, Rint=0.048 7. The crystal structure shows an anionic didentate ligand O and N donors in this work. The cobalt(Ⅲ) atom is hexacoordinated with oxygen atom from keto group and nitrogen atom from amide to form a cobalt atom for the core octahedral structure. CCDC: 748882. 相似文献
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In ethanol, a new mononuclear nickel(Ⅱ) complex incorporating Schiff base ligands, [NiL2](DMF)4 (HL=2′-(4-fluorobenzylidene)-3,5-dihydroxybenzoylhy drazide) has been synthesized and characterized by IR, UV-Vis, elemental analysis and X-ray crystal structure analysis. The single crystal structure has been determined by single-crystal X-ray diffraction structure analysis. The crystal belongs to monoclinic system, space group P21/c with a=1.617 3(2) nm,b=1.798 5(2) nm, c=0.737 61(10) nm, β=91.953(3)°, V=2.144 3(5) nm3, Z=2, μ=0.526 mm-1, Dc=1.390 g·cm-3, F(000)=940, Rint=0.105 3. In the compound nickel(Ⅱ) atom is four-coordinated with two nitrogen atoms from amide and two oxygen atoms from keto group. The complex has the centrosymmetry and the nickel(Ⅱ) ion is located in the center. CCDC: 675522. 相似文献
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本文研究了以(S) -N-取代-1,2,3,4-四氢异喹啉-3-甲酰胺衍生物的有机小分子催化剂催化不对称Aldol反应,得到高达92%收率和57%的ee值. 相似文献
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1INTRODUCTION Recently,compounds containing pyrazole,imida-zole,triazole(including benzotriazole),pyridine,tetrazole and indole have attracted much interest because they exhibit some fungicidal activity,plant-growth regulating activity and antibacterial acti-vity[1~10].Schiff bases also constitute a good type of biologically active substructure[11~14],and the sulfur-containing Schiff bases are particularly effective.Studies of pyrazole Schiff base-type fungicides andtriazole compounds c… 相似文献
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以水杨醛和5-甲基-4-异噁唑甲酰肼为原料,于中温混合溶剂热体系中合成出标题化合物水杨醛-5-甲基-4-异噁唑甲酰腙[C12H11O3N3,3],用单晶X-射线衍射(XRD)、紫外及荧光和热重分析等实验方法对其进行了表征。结果表明,晶体属正交晶系,Pna21空间群。晶胞参数:a=1.28783(6)nm,b=1.13108(6)nm,c=0.86535(4)nm,V=1.2605nm3,Z=4。标题物3的水溶液在486nm处呈现一强蓝色荧光发射峰,可归属于激发态分子内质子转移电荷发光;同时,标题物3对枯草芽孢杆菌、铜绿脓杆菌、大肠杆菌和金黄色葡萄球菌等都有明显的抑菌活性;分子的静电势图(EPM)再现其具有较强的广谱抗菌活性。 相似文献
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近年来的研究表明,席夫碱化合物具有广泛的生物活性,在生化反应中起到转氨基作用,碳氮双键是该类化合物具有抑菌活性的效应基团,它们在农药、医药及分析试剂等方面已有很好的应用[1-5]。为了进一步探索高效抑菌、抗病毒药物,我们合成了标题化合物。并用波谱法对合成的中间产物及目标产物进行了结构表征,通过X-单晶射线衍射法测定了目标化合物的晶体结构,并对其进行了量子化学研究。1实验与计算方法1.1仪器与试剂PE-2400C元素分析仪;BRUKER EQUINOX-55红外光谱仪(KBr压片);Varian XL200型核磁共振仪,DMSO为溶剂,TMS为内标;GBC-9… 相似文献