共查询到20条相似文献,搜索用时 15 毫秒
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Kelbysheva E. S. Gordey Yu. A. Ezernitskaya M. G. Smol’yakov A. F. Telegina L. N. 《Russian Journal of Coordination Chemistry》2020,46(1):28-36
Russian Journal of Coordination Chemistry - With the aim of preparing of sulfur-containing derivatives of cymantrene, the hydrolysis of isothiouronium salts of alkylcymantrenes was studied under... 相似文献
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Kseniya Maryunina Gleb Letyagin Galina Romanenko Artem Bogomyakov Vitaly Morozov Sergey Tumanov Sergey Veber Matvey Fedin Evgeniya Saverina Mikhail Syroeshkin Mikhail Egorov Victor Ovcharenko 《Molecules (Basel, Switzerland)》2022,27(21)
The 2-imidazoline nitroxide derivatives of cymantrene—2-(η5-cyclopentadienyl)tricarbonylmanganese(I)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (NNMn) and 2-(η5-cyclopentadienyl)tricarbonylmanganese(I)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-1-oxyl (INMn) were synthesized. It was shown that NNMn and INMn exhibit a sufficiently high kinetic stability both in solids and in solutions under normal conditions. Their structural characteristics, magnetic properties and electrochemical behavior are close to Re(I) analogs. This opens the prospect of using paramagnetic cymantrenes as prototypes in the design of Re(I) half-sandwiched derivatives for theranostics, where therapy is combined with diagnostics by magnetic resonance imaging due to the contrast properties of nitroxide radicals. 相似文献
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Reinhard Thaler Dr. Holger Kopacka Dr. Klaus Wurst Prof. Dr. Thomas Müller Florian R. Neururer Prof. Dr. Stephan Hohloch Petra Lippmann Prof. Dr. Ingo Ott Prof. Dr. Benno Bildstein 《欧洲无机化学杂志》2023,26(26):e202300368
New clathrochelate complexes of manganese, iron and cobalt containing peripheral organometallic manganese moieties cymantrene or tromancenium were synthesized via self-assembly from di/tri-topic dioximes, metal templates and cymantrene/tromancenium boronic acid pinacol esters. These air-stable, highly colored, oligometallic complexes are composed of various combinations of MnIFeIIMnI, MnICoIIMnI, MnIMnIIMnIIMnI and MnICoIICoIIMnI metal assemblies with corresponding complicated magnetic and electrochemical properties. Full spectroscopic and structural characterization by 1H/11B/13C NMR, HRMS, IR, UV-vis, single crystal XRD and CV (cyclic voltammetry) is provided. Tetrametallic complexes containing tromanceniumyl substituents with two CoII or MnII central metals exhibit promising anticancer properties against different tumor cell lines. 相似文献
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In 1959, Horiguchi and Kandatsu1 first isolated 2-aminomethylphos-phonic acid from ciliate protozoa. Since then the compound has been found in numerous other organisms2 and recently it has been found in human brain3, liver, heart and skeletal muscles4, and in red blood cell membrane. These findings establish the biological importance of the carbon-phosphorus bond in nature. Quin2 suggested that the naturally occurring aminophosphonic acids are bound to proteins and peptides. 相似文献
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Ethenylbenzothiazoles were synthesized by the Horner-Emmons reaction of benzothiazolylmethylphosphonate with aldehydes under phase transfer catalytic conditions in 60–71% yields. Not only aromatic but also aliphatic aldehydes gave the desired products under these mild conditions in 66–71% yields. 相似文献
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利用异色满酮-4合成了一系列新的异色满并嘧啶类衍生物4a-tf,其结构均经元素分析,IR和HNMR分析予以证实。 相似文献
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Mesropyan E. G. Ambartsumyan G. B. Avetisyan A. A. Sarkisyan M. G. 《Russian Journal of Organic Chemistry》2003,39(8):1130-1132
Reactions were studied of isatin sodium salt with bromocyclohexane, p-ethoxyphenyl chloroethyl ketone, 4,4'-di(chloromethyl)biphenyl, and 4,4'-(dichloromethyl)diphenylmethane. N-cyclohexylisatin, p-ethoxyphenyl N-isatinoethyl ketone, 4,4'-di(N-isatinomethyl)biphenyl, 4-chloromethyl-4'(N-isatinomethyl)biphenyl, 4,4'-di(N-isatinomethyl)diphenylmethane, 4-chloromethyl-4'(N-isatinomethyl)diphenylmethane, and 4-(N-morpholinomethyl)-4'-(N-isatinomethyl)diphenyl were synthesized. 相似文献
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An expedient three‐step procedure for the synthesis of trichlorophenol derivatives based on the acid‐catalyzed rearrangement of the bicyclic ketone precursors 6a–e in high overall yield is described. The bicyclic ketone precursors 6a–e were obtained from Diels–Alder cycloadducts of β‐substituted vinyl acetates with tetrachloro‐5,5‐dimethoxycyclopentadiene in two steps. 相似文献
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S. A. Hovakimyan A. V. Babakhanyan V. S. Voskanyan V. E. Karapetian G. A. Panosyan S. T. Kocharian 《Chemistry of Heterocyclic Compounds》2004,40(8):1047-1051
The reaction of methyl esters of 3-methyl-2-oxo- and 2-oxo-3-phenyl-3-pentenoic acids with hydrazine hydrate and phenylhydrazine was used to synthesize new pyridazinone derivatives. These products are formed through intermediate hydrazides with subsequent cyclization. 4-Hydroxy-3-oxotetrahydropyridazines are mainly formed using equimolar amounts of the starting reagents, while the corresponding hydrazones of 3,4-dioxohexahydropyridazines are formed in the case of a two-fold excess of hydrazine hydrate or phenylhydrazine. Evidence was obtained indicating the existence of a keto–enol tautomerism for 4-hydroxy-3-oxopyridazines. 相似文献