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Thermodynamic properties of the Cs2O—Al2O3—SiO2 system at high temperatures 高温下cs20 - al2o3 - sio2体系的热力学性质
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4436-y
V. L. Stolyarova, A. L. Shilov, S. I. Lopatin, A. V. Fedorova, V. A. Vorozhtcov
{"title":"Thermodynamic properties of the Cs2O—Al2O3—SiO2 system at high temperatures","authors":"V. L. Stolyarova,&nbsp;A. L. Shilov,&nbsp;S. I. Lopatin,&nbsp;A. V. Fedorova,&nbsp;V. A. Vorozhtcov","doi":"10.1007/s11172-024-4436-y","DOIUrl":"10.1007/s11172-024-4436-y","url":null,"abstract":"<div><p>Evaporation processes and thermodynamic properties were for the first time investigated using the Knudsen effusion mass spectrometric method for ceramics based on the Cs<sub>2</sub>O—Al<sub>2</sub>O<sub>3</sub>—SiO<sub>2</sub> system within the temperature range of 1000–1200 K. The found values of partial pressures of vapor species, activities of components, and Gibbs energy indicated negative deviations of the thermodynamic properties from the model of ideal solution. The obtained experimental values of thermodynamic properties were optimized using the generalized lattice theory of the associated solutions.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3204 - 3214"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of conjugates of sesquiterpene lactones with 3,5-bis(arylidene)piperidin-4-ones as potential NF-κB modulators using phase transfer catalysis conditions 以3,5-二芳基吡啶-4-酮为潜在NF-κB调节剂的倍半萜内酯偶联物的相转移催化合成
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4456-7
O. I. Artyushin, E. V. Sharova, E. V. Smirnova, A. V. Semakov, Yu. R. Aleksandrova, M. E. Neganova, V. K. Brel
{"title":"Synthesis of conjugates of sesquiterpene lactones with 3,5-bis(arylidene)piperidin-4-ones as potential NF-κB modulators using phase transfer catalysis conditions","authors":"O. I. Artyushin,&nbsp;E. V. Sharova,&nbsp;E. V. Smirnova,&nbsp;A. V. Semakov,&nbsp;Yu. R. Aleksandrova,&nbsp;M. E. Neganova,&nbsp;V. K. Brel","doi":"10.1007/s11172-024-4456-7","DOIUrl":"10.1007/s11172-024-4456-7","url":null,"abstract":"<div><p>A simple method for modifying sesquiterpene lactones with 3,5-bis(arylidene)piperi-din-4-ones using the phase-transfer catalytic aza-Michael addition in the MeCN—K<sub>2</sub>CO<sub>3</sub> system was developed. Molecular docking revealed that the synthesized conjugates of isoalantolactone, alantolactone, and dehydrocostus lactone with various bis(arylidene)-piperidones directly interact with the DNA binding site of the p50 subunit of nuclear factor κB, which may be indicative of their ability to induce apoptotic death of the tumor cells due to activation of the death receptor expression and, thereby, to exhibit an antitumor effect.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3389 - 3398"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of oxaloacetic esters 草酰乙酸酯的合成
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4432-2
O. N. Markov, E. K. Beloglazkina, A. V. Finko
{"title":"Synthesis of oxaloacetic esters","authors":"O. N. Markov,&nbsp;E. K. Beloglazkina,&nbsp;A. V. Finko","doi":"10.1007/s11172-024-4432-2","DOIUrl":"10.1007/s11172-024-4432-2","url":null,"abstract":"<div><p>The present review is devoted to oxaloacetic esters widely used in the synthesis of heterocyclic compounds and malonic ester derivatives. Three carbonyl groups of oxaloacetic esters have different reactivity allowing the tuning of overall reactivity of these compounds. The synthetic approaches to oxaloacetic esters, in particular the condensation of oxalates and acetates as well as the modern innovations in this classical synthesis that involved alkyl oxalyl chlorides, are reviewed. The main strategies for modification of oxaloacetic esters, <i>e.g.</i>, halogenation and arylation, as well as the possibilities to overcome the side reactions are considered in detail. Special attention is paid to transformations of hydroxysuccinic esters and their oxidation to oxaloacetic esters. The reactions of acetylenedicarboxylic esters with carbonyl compounds, <i>N</i>- and <i>S</i>-oxides, and nitrones are also considered. The mechanisms of the rearrangement of the adducts of acetylenedicarboxylic ethers with heteroaromatic <i>N</i>-oxides are thoroughly discussed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3134 - 3175"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quasi-aromatic clathrochelate-centered radicals: preparation, reactivity, and prospects for practical application 以准芳香族螯合物为中心的自由基：制备、反应性及应用前景
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4433-1
A. S. Chuprin
{"title":"Quasi-aromatic clathrochelate-centered radicals: preparation, reactivity, and prospects for practical application","authors":"A. S. Chuprin","doi":"10.1007/s11172-024-4433-1","DOIUrl":"10.1007/s11172-024-4433-1","url":null,"abstract":"<div><p>The review is devoted to the main synthetic strategies and optimal methods for preparation of persistent clathrochelate-centered radicals, the macrobicyclic products of free-radical reactions of the clathrochelate precursors. Prospects for practical applications of this type of compounds as radical polymerization initiators and paramagnetic probes for MRI and EPR studies are analyzed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3176 - 3189"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spin crossover in new iron(ii) complexes with 2,6-bis(1H-imidazol-2-yl)-4-methoxypyridine 与2,6-双（1h -咪唑-2-基）-4-甲氧基吡啶配合物的自旋交叉
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4446-9
O. G. Shakirova, I. A. Os’kina, E. V. Korotaev, S. A. Petrov, S. G. Kozlova, L. S. Klyushova, A. Ya. Tikhonov, L. G. Lavrenova
{"title":"Spin crossover in new iron(ii) complexes with 2,6-bis(1H-imidazol-2-yl)-4-methoxypyridine","authors":"O. G. Shakirova,&nbsp;I. A. Os’kina,&nbsp;E. V. Korotaev,&nbsp;S. A. Petrov,&nbsp;S. G. Kozlova,&nbsp;L. S. Klyushova,&nbsp;A. Ya. Tikhonov,&nbsp;L. G. Lavrenova","doi":"10.1007/s11172-024-4446-9","DOIUrl":"10.1007/s11172-024-4446-9","url":null,"abstract":"<div><p>New iron(<span>ii</span>) complexes with 2,6-bis(1<i>H</i>-imidazol-2-yl)-4-methoxypyridine (L), <i>viz.</i>, [FeL<sub>2</sub>]Cl<sub>2</sub>•2H<sub>2</sub>O (<b>1</b>•2H<sub>2</sub>O), [FeL<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub>•H<sub>2</sub>O (<b>2</b>•H<sub>2</sub>O), [FeL<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub>•0.5H<sub>2</sub>O (<b>3</b>•0.5H<sub>2</sub>O), and [FeL<sub>2</sub>]I<sub>2</sub>•C<sub>3</sub>H<sub>6</sub>O (<b>4</b>•C<sub>3</sub>H<sub>6</sub>O) were synthesized and studied. Conclusions about the structure of the compounds are based on the diffuse reflectance, IR, and Mössbauer spectroscopy data and on the results of static magnetic susceptibility measurements and quantum chemical calculations. The temperature dependences of the effective magnetic moments of the compounds synthesized, except <b>1•2H</b><sub><b>2</b></sub><b>O</b> and <b>1</b>, demonstrated features associated with spin crossover accompanied by thermochromism (changes of the color from orange to red-violet). The cytotoxic and cytostatic activity studies of the compounds in question revealed a cytostatic effect on the human hepatocellular carcinoma HepG2 cells characterized by 50% inhibitory concentration (IC<sub>50</sub>) values from 44.7 ± 0.4 to 58.8 ± 0.6 µmol L<sup>−1</sup>.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3304 - 3317"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Conjugates of anticholinesterase drugs ipidacrine and tacrine with thiouracils: synthesis and biological properties 抗胆碱酯酶药物ipidacrine和tacrine与硫脲嘧啶的偶联物：合成及其生物学特性
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4457-6
M. V. Grishchenko, O. G. Khudina, G. F. Makhaeva, Ya. V. Burgart, N. V. Kovaleva, E. V. Rudakova, N. P. Boltneva, M. V. Ulitko, V. I. Saloutin, V. N. Charushin
{"title":"Conjugates of anticholinesterase drugs ipidacrine and tacrine with thiouracils: synthesis and biological properties","authors":"M. V. Grishchenko,&nbsp;O. G. Khudina,&nbsp;G. F. Makhaeva,&nbsp;Ya. V. Burgart,&nbsp;N. V. Kovaleva,&nbsp;E. V. Rudakova,&nbsp;N. P. Boltneva,&nbsp;M. V. Ulitko,&nbsp;V. I. Saloutin,&nbsp;V. N. Charushin","doi":"10.1007/s11172-024-4457-6","DOIUrl":"10.1007/s11172-024-4457-6","url":null,"abstract":"<div><p>Chloroalkylene amide derivatives were obtained by acylation of known Cholinesterase inhibitors, ipidacrine and tacrine. The acylated derivatives were used in the alkylation of substituted 2-thiouracils (R = Me, CF<sub>2</sub>H, CF<sub>3</sub>, (CF<sub>2</sub>)<sub>2</sub>H)) for the synthesis of new hybrid compounds. Study of the esterase profile revealed a pronounced activity and selectivity of the obtained conjugates against butyrylcholinesterase (IC<sub>50</sub> up to 2.03 µmol L<sup>−1</sup>), moderate displacement of propidium from the acetylcholinesterase peripheral anionic site, and moderate inhibition of the β-amyloid self-aggregation. It was found that conjugation of thiouracils with tacrine leads to a decrease in the hepatotoxicity of the hybrid compounds compared to that of tacrine, while in the case of ipidacrine derivatives, no hepatotoxicity was observed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3399 - 3409"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction of Xymedon with l-ascorbic acid in an aqueous solution Xymedon与l-抗坏血酸在水溶液中的相互作用
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4455-8
V. Yu. Ivanova, V. V. Chevela, M. S. Shashin, V. E. Semenov, R. R. Zainulin
{"title":"Interaction of Xymedon with l-ascorbic acid in an aqueous solution","authors":"V. Yu. Ivanova,&nbsp;V. V. Chevela,&nbsp;M. S. Shashin,&nbsp;V. E. Semenov,&nbsp;R. R. Zainulin","doi":"10.1007/s11172-024-4455-8","DOIUrl":"10.1007/s11172-024-4455-8","url":null,"abstract":"<div><p>The interaction of Xymedon (1,2-dihydro-1-(2-hydroxyethyl)-2-oxo-4,6-dimethyl-pyrimidine, <b>1</b>) and <span>l</span>-ascorbic acid (<b>2</b>) in an aqueous solution was studied by the methods of potentiometric titration, spectroscopy in the UV—visible range, and mathematical simulation of equilibria (CPESSP program). The formation of a <b>1…2</b> associate was shown to take place at a wide change in the <i>C</i><sub>2</sub>: C<sub>1</sub> molar ratio, and its acidity constant was determined: p<i>K</i><sub>a,111</sub> = 4.95.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3381 - 3388"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
15N-Labeled tetrazoloazines in investigation of the azido-tetrazole equilibrium 氮化氮标记四氮杂嗪对叠氮-四氮唑平衡的研究
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4431-3
S. L. Deev, E. S. Sheina, T. S. Shestakova, V. N. Charushin, O. N. Chupakhin
{"title":"15N-Labeled tetrazoloazines in investigation of the azido-tetrazole equilibrium","authors":"S. L. Deev,&nbsp;E. S. Sheina,&nbsp;T. S. Shestakova,&nbsp;V. N. Charushin,&nbsp;O. N. Chupakhin","doi":"10.1007/s11172-024-4431-3","DOIUrl":"10.1007/s11172-024-4431-3","url":null,"abstract":"<div><p>The data on studying the azido-tetrazole equilibrium in the tetrazoloazine series by using <sup>15</sup>N-labeled samples are reviewed. The incorporation of the <sup>15</sup>N atom significantly expands capabilities of NMR spectroscopy. An analysis of chemical shifts and <sup>1</sup>H—<sup>15</sup>N, <sup>13</sup>C—<sup>15</sup>N, and <sup>15</sup>N—<sup>15</sup>N spin-spin coupling constants is an efficient method for studying these transformations.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3113 - 3133"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crown ether-containing derivative of [1]benzothieno[3,2-b]benzothiophene for receptor layers of electrolyte-gated organic field-effect transistors 含冠醚衍生物[1]苯并噻吩[3,2-b]苯并噻吩的电解质门控有机场效应晶体管受体层
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4439-8
B. S. Kuleshov, E. Yu. Poymanova, M. S. Skorotetcky, O. V. Borshchev, G. V. Cherkaev, E. V. Agina, S. A. Ponomarenko
{"title":"Crown ether-containing derivative of [1]benzothieno[3,2-b]benzothiophene for receptor layers of electrolyte-gated organic field-effect transistors","authors":"B. S. Kuleshov,&nbsp;E. Yu. Poymanova,&nbsp;M. S. Skorotetcky,&nbsp;O. V. Borshchev,&nbsp;G. V. Cherkaev,&nbsp;E. V. Agina,&nbsp;S. A. Ponomarenko","doi":"10.1007/s11172-024-4439-8","DOIUrl":"10.1007/s11172-024-4439-8","url":null,"abstract":"<div><p>We have demonstrated that electrolyte-gated organic field-effect transistors (EGOFETs) with the semiconductor layer based on [1]benzothieno[3,2-<i>b</i>]benzothiophene and the receptor layer containing 4,13-diaza-18-crown-6 ether can be used as sensors for sodium or potassium ions in solution. The proposed method for fabrication of the receptor layer allows developing a universal platform for the detection of various metal ions using crown ether structures. The EGOFETs with the receptor layer described in this work can operate in electrolyte solutions of high ionic strength, thus providing the possibility to detect sodium and potassium ions in real biological fluid samples.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3239 - 3251"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of the iodine-promoted cyclization of 4,5-diethynyl-1,2,3-triazoles for the synthesis of triazole-iodoheterocyclic dyads 碘促进4,5-二乙基-1,2,3-三唑环化合成三唑-碘杂环二偶体的研究
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-01-14 DOI: 10.1007/s11172-024-4447-8
A. I. Govdi, K. V. Kimele, I. A. Balova
{"title":"Study of the iodine-promoted cyclization of 4,5-diethynyl-1,2,3-triazoles for the synthesis of triazole-iodoheterocyclic dyads","authors":"A. I. Govdi,&nbsp;K. V. Kimele,&nbsp;I. A. Balova","doi":"10.1007/s11172-024-4447-8","DOIUrl":"10.1007/s11172-024-4447-8","url":null,"abstract":"<div><p>A series of functionalized 4,5-bis(arylethynyl)triazoles were prepared by a copper-catalyzed cycloaddition of 1-iodobuta-1,3-diynes and azides and subsequent Sonogashira reaction of iodoethynyltriazoles with substituted arylacetylenes. The iodine-promoted cyclization of 4,5-bis(arylethynyl)triazoles involved only one triple bond and led to the formation of 2-triazolyl-3-iodoheteroindenes or 5-(4-iodoisochromeno)triazoles.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"73 11","pages":"3318 - 3323"},"PeriodicalIF":1.7,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142976432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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