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联苯乙酮缩氨基硫脲合铜(Ⅱ)配合物的合成和生物活性 总被引:12,自引:0,他引:12
合成了联苯乙酮缩氨基硫脲及其与Cu(Ⅱ)的配合物,通过元素分析、摩尔电导、红外光谱和电子光谱等进行表征,证明配合物为四配位的平面正方形结构.用pH法测定了配体的质子化常数和配合物的稳定常数.抗菌活性实验表明,配体具有良好的抑菌活性,与Cu(Ⅱ)形成配合物后抑菌活性大大增强. 相似文献
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报道9种新的过渡金属[Cr(Ⅲ)、Mn(Ⅱ)、Fe(Ⅲ)、Co(Ⅱ)、Ni(Ⅱ)、Cu(Ⅱ)、Zn(Ⅱ)]五苯并咪唑甲基二乙三胺双核配合物的研究。变温磁化率分析结果表明,双核离子间存在反铁磁相互作用。对于二价过渡金属离子,磁交换作用大小为.对配合物进行了体外抗癌活性和农药活性测定,发现部分配合物具有生物活性。 相似文献
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2-氨基噻唑缩水杨醛合Zn(Ⅱ)配合物的合成、表征及抑菌活性梁芳珍郝京诚黄汝骐(山东师范大学化学系济南250014)众多的Schif碱及其金属配合物以其良好的抑菌、抗癌和抗病毒的生物活性[1],一直受到人们的重视。含硫Schif碱是其中有影响的一类,... 相似文献
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3,5—二溴水杨醛Schiff碱的铜(Ⅱ)配合物研究 总被引:6,自引:0,他引:6
3,5-二溴水杨醛Schif碱的铜(Ⅱ)配合物研究赵全芹柳翠英王德凤于爱华(山东医科大学药学系济南250012)关键词3,5-二溴水杨醛Schif碱配合物抑菌活性中图分类号O614.121Schif碱衍生物与过渡金属离子所形成的配合物具有抗癌、抗病毒... 相似文献
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甲酰基甲酸氨基硫脲席夫碱二价金属离子配合物的研究 总被引:14,自引:1,他引:14
合成了甲酰基甲酸氨基硫脲席夫碱(H2FFTSC)的配合物.元素分析和摩尔电导等确定其组成为M(HFFTSC)_2·nH_2O(M=Co(Ⅱ),Ni(Ⅱ),n=2;M=Zn(Ⅱ),n=1;M=Mn(Ⅱ),Pb(Ⅱ),n=0)和Cu(FFTSC)·H_2O,红外吸收光谱等研究表明配体通过羧酸棍氧原子、甲亚胺氮原子和硫酮基(或硫醇基)的硫原子和金属离子配位.测试了配合物的杀菌活性. 相似文献
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周智明 《高等学校化学学报》1999,20(1):72-76
从二炔丙基胺(1)出发,用二氯化钴和三苯膦经二(三苯膦)氯合然合成了戊二烯Ⅱ)配合物(8);用改进方法,八羰基二钴经多核然配合物10合成了双钴(Ⅱ)配合物11.分别考察了这两种不同价态的钴环配合物对富马酸二乙酯的反应活性,配合物8与活性烯烃2反应产生新的稳定的配合物9,配合物11则生成有机化合物3,根据配合物8的X射线晶体结构解释了Co(Ⅲ)对活性烯烃的反应活性。 相似文献
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Uroš Grošelj Mojca Žorž Amalija Golobič Branko Stanovnik Jurij Svete 《Tetrahedron》2013,69(52):11092-11108
A new and simple synthesis of novel N-protected methyl 5-substituted-4-hydroxypyrrole-3-carboxylates, which exist in equilibrium with their 4-oxo tautomers, has been developed in two steps starting from N-protected α-amino acids. The key intermediates are enaminones, which can also be isolated, characterized, and used for the construction of other functionalized heterocycles, before they spontaneously decompose to pyrrole products. 4-Hydroxypyrroles are prone to partial aerial oxidation but can be efficiently alkylated or reduced to stable polysubstituted pyrrolidine derivatives. 相似文献
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The chemoselectivity in the intramolecular CH insertion of various diazosulfonamides has been experimentally studied. The results reveal that the aliphatic 1,4-, 1,5-, or 1,6-C(sp3)?H insertions of diazosulfonamides are not accessible, while the aromatic 1,5-C(sp2)?H insertion can be realized specifically by adjusting the diazo-adjacent group. In addition, the general chemoselectivities in the intramolecular CH insertions of diazosulfonyl compounds are summarized. Generally, diazosulfones undergo both aromatic 1,5-C(sp2)?H and aliphatic 1,5- and 1,6-C(sp3)?H insertions, while diazosulfonates undergo aliphatic 1,5- and 1,6-C(sp3)?H insertions. However, diazosulfonamides only undergo aromatic 1,5-C(sp2)?H insertion. 相似文献
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N-Heterocyclic carbene-palladacyclic complexes 3 were successfully achieved in a one-pot procedure under mild conditions. The structure of 3a was unambiguously confirmed by X-ray single crystal diffraction and it was an active catalyst in the Buchwald-Hartwig amination and α-arylation of ketones even at very low catalyst loadings (0.01?mol%). 相似文献
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Shashikant U. Dighe Surya K. Samanta Shivalinga Kolle Sanjay Batra 《Tetrahedron》2017,73(17):2455-2467
An efficient iodine-mediated oxidative Pictet-Spengler reaction in dimethyl sulphoxide (DMSO) using terminal alkynes as the 2-oxoaldehyde surrogate for the synthesis of aryl (9H-pyrido[3,4-b]indol-1-yl)methanones is described. The scope of the protocol includes the total synthesis of Fascaplysin, Eudistomins Y1 and Y2. The methodology is extended for preparing pyrrolo[1,2-a]-quinoxaline and indolo[1,5-a]quinoxaline derivatives. The utility of 1-aroyl-β-carbolines was demonstrated by performing palladium-catalyzed β-carboline directed ortho-C(sp2)-H functionalization of the phenyl ring with thiomethyl (SMe) group using DMSO as source and for accessing 4-aryl-canthin-6-ones. 相似文献
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In this Letter, we described a facile method for constructing fused bicyclic 1-arylpyrazol-5-one ring system. We employed various methylene-containing carboxylic acids as the substrates and proved that the pyrazolone ring closure requires activated methylene group in intermediate II. Accordingly, a series of structurally diversified, fused bicyclic 1-arylpyrazol-5-ones was prepared in moderate to high yields using the requisite substrates. 相似文献
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Synthesis of substituted pyrrolo[1,2-a]pyrazines and pyrazino[1,2-a]indoles from the Morita-Baylis-Hillman derivatives of acrylates via saponification followed by Curtius reaction is described. 相似文献
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用正丁胺作为碳源,采用射频辉光放电制备碳膜,选用激光染料R6G和聚乙二醇混合液作为蒸气源,采用单源热蒸发,在蒸发室与染料同时沉积得到混合膜,用拉曼光谱和红外光谱分析了碳膜的结构和键合方式,分析表明:碳膜中存在胺基团和氢原子.混合膜的荧光谱测量结果表明,认为正丁胺对染料荧光谱的影响是因为胺基和氢原子的存在. 相似文献
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Jona Mirnik Eva Pušavec Kirar Sebastijan Ričko Uroš Grošelj Amalija Golobič Franc Požgan Bogdan Štefane Jurij Svete 《Tetrahedron》2017,73(24):3329-3337
A series of 20 CuAIAC reactions between eight 4-acylamino substituted pyrazolidine-3-one-1-azomethine imines and four terminal ynones were performed using Cu0 as catalyst. The corresponding fluorescent cycloadducts were obtained in very high yields upon simple workup. Thus, Cu-metal turned out to be a better catalyst than CuI in terms of yield and ease of isolation. Availability of azomethine imines, mild reaction conditions, and simple workup enable a “click” access to libraries of densely substituted 2,3-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-ones. Reactivity of differently substituted dipoles was evaluated experimentally and by quantum chemical methods (DFT). 相似文献
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George E. Magoulas Thomas Garnelis Constantinos M. Athanassopoulos Dionissios Papaioannou George Mattheolabakis Konstantinos Avgoustakis Dimitra Hadjipavlou-Litina 《Tetrahedron》2012,68(35):7041-7049
(E)-4-(Fullerenopyrrolidin-1-yl)-3-methylbut-2-enoic acid and its corresponding succinimidyl ester, readily obtained through Prato-type modification of C60, were used for the selective N-acylation of polyamines. The thus obtained conjugates were evaluated for their antioxidative and anti-inflammatory activity and their cytotoxicity was determined. Members of this family of compounds showed interesting anti-lipid peroxidation, anti-lipoxygenase and anti-inflammatory activity and comparable cytocompatibility to spermidine. 相似文献