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From synthesis of silver nanoparticles to polymer nanocomposites 从银纳米粒子的合成到聚合物纳米复合材料
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4524-7
L. L. Gur’eva, L. I. Kuzub, D. V. Anokhin, E. R. Badamshina
{"title":"From synthesis of silver nanoparticles to polymer nanocomposites","authors":"L. L. Gur’eva,&nbsp;L. I. Kuzub,&nbsp;D. V. Anokhin,&nbsp;E. R. Badamshina","doi":"10.1007/s11172-025-4524-7","DOIUrl":"10.1007/s11172-025-4524-7","url":null,"abstract":"<div><p>The regularities of formation of silver nanoparticles with a shell of coordinatively bound monocarboxylate ligands in a one-step synthesis by the reaction of low-temperature reduction of precursors, that is, silver alkyl- and oligostyrylmonocarboxylates, with triethylamine, diepoxy oligomer ED-20, and polyurethane prepolymer, were studied. A single mechanism of formation of silver nanoparticles through the dissolution of precursors in reducing agents by the reaction of formation of diphilic complexes between silver monocarboxylate molecules organized in micelles and electron-donor groups of reducing agents with a subsequent reduction reaction and self-assembly of nanoparticles was determined, which ensures the preservation of the spherical shape, small sizes (<i>d</i> ≈ 2–8 nm), and narrow dispersions: Ag<sup>+</sup> → Ag<sup>0</sup> → (Ag<sup>0</sup>)<sub><i>n</i></sub>. Based on the determined mechanism, we propose a strategy for the preparation of polymer nanocomposites by curing with amines a pre-prepared modified binder consisting of epoxy resin ED-20 or polyurethane prepolymer, silver nanoparticles, and unreacted silver oligostyrylmonocarboxylate. The limiting concentration of the precursor in the modified binder, at which a uniform distribution of silver nanoparticles within the bulk of the nanocomposites is achieved, was determined. It is shown that silver nanoparticles slightly reduce the glass transition temperature and do not affect the mechanical properties of epoxy nanocomposites. The termophysical properties of the nanocomposites depend on the topology of the epoxy matrix.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"281 - 304"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716972","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, molecular and crystal structures of new amino enones containing trifluoromethyl and 3- or 4-pyridyl substituents 含三氟甲基和3-或4-吡啶基取代基的新型氨基烯酮的合成、分子和晶体结构
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4537-2
N. S. Boltacheva, P. A. Slepukhin, M. G. Pervova, D. L. Chizhov, V. I. Filyakova, V. N. Charushin
{"title":"Synthesis, molecular and crystal structures of new amino enones containing trifluoromethyl and 3- or 4-pyridyl substituents","authors":"N. S. Boltacheva,&nbsp;P. A. Slepukhin,&nbsp;M. G. Pervova,&nbsp;D. L. Chizhov,&nbsp;V. I. Filyakova,&nbsp;V. N. Charushin","doi":"10.1007/s11172-025-4537-2","DOIUrl":"10.1007/s11172-025-4537-2","url":null,"abstract":"<div><p>The reaction of lithium (<i>Z</i>)-1,1,1-trifluoro-4-oxo-4-(pyridin-3-yl)- or (<i>Z</i>)-1,1,1-trifluoro-4-oxo-4-(4-pyridin-4-yl)but-2-en-2-olate with ammonium acetate in glacial AcOH afforded new amino enones containing an amino group geminal to the fluoroalkyl substituent, (<i>Z</i>)-3-amino-4,4,4-trifluoro-1-(pyridin-3-yl)- and (<i>Z</i>)-3-amino-4,4,4-trifluoro-1-(pyridin-4-yl)but-2-en-1-one, respectively. On heating in AcOH under reflux, (<i>Z</i>)-3-amino-4,4,4-trifluoro-1-(pyridin-3-yl)but-2-en-1-one undergoes a series of transformations, giving 7-trifluoromethyl-1,6-naphthyridine as one of the products. A comparative study of the physicochemical parameters and the crystal structures of amino enones containing a CF<sub>3</sub> group and 2-, 3-, or 4-pyridyl substituents was performed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"451 - 460"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716879","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 and in vitro antitumor activity of 3(4)-alkyl-substituted [1,2,4]triazolo[1,5-a]pyrimidin-7-amines 3(4)-烷基取代[1,2,4]三唑[1,5-a]嘧啶-7胺的合成及体外抗肿瘤活性研究
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4538-1
A. A. Ushakova, V. V. Fedotov, V. V. Melekhin, M. D. Tokhtueva, A. V. Paramonova, S. K. Kotovskaya, E. N. Ulomsky, V. L. Rusinov
{"title":"Synthesis and in vitro antitumor activity of 3(4)-alkyl-substituted [1,2,4]triazolo[1,5-a]pyrimidin-7-amines","authors":"A. A. Ushakova,&nbsp;V. V. Fedotov,&nbsp;V. V. Melekhin,&nbsp;M. D. Tokhtueva,&nbsp;A. V. Paramonova,&nbsp;S. K. Kotovskaya,&nbsp;E. N. Ulomsky,&nbsp;V. L. Rusinov","doi":"10.1007/s11172-025-4538-1","DOIUrl":"10.1007/s11172-025-4538-1","url":null,"abstract":"<div><p>A series of [1,2,4]triazolo[1,5-<i>a</i>]pyrimidin-7-amines was synthesized by cyclocondensation of 5-aminotriazoles with morpholinoacrylonitrile derivatives, and alkylation of the products was studied. The alkylation gave two regioisomers, the ratio of which depended on the substituents in the azole and pyrimidine moieties of the heterocyclic system. The new 3(4)-alkyl-[1,2,4]triazolo[1,5-<i>a</i>]pyrimidin-7-amines were tested for the cytotoxic activity against the following human cells: fetal lung (Wi-38), rhabdomyosarcoma (Rd), colorectal adenocarcinoma (CaCo-2), and bladder carcinoma (T-24) cells. The results of the study showed that compound <b>8</b> characterized by IC<sub>50</sub> &lt; 60 µmol L<sup>−1</sup> suppresses the growth of tumor cells. For the lead compound <b>8</b>, the main putative mechanism of action was studied and found to consist in the cytostatic effect that slows down DNA replication and neoplastic cell division activity without triggering apoptotic mechanisms.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"461 - 468"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716798","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
International Conferences in Chemistry Held in Russia in 2025 2025年在俄罗斯举行国际化学会议
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4553-2
{"title":"International Conferences in Chemistry Held in Russia in 2025","authors":"","doi":"10.1007/s11172-025-4553-2","DOIUrl":"10.1007/s11172-025-4553-2","url":null,"abstract":"","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"558 - 558"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716881","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 new 2,4,11,13-tetrasubstituted tribenzo[1,4]dioxocine-7,8-dicarbonitriles 新2,4,11,13-四取代三苯并[1,4]二恶辛-7,8-二碳腈的合成
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4535-4
V. L. Baklagin, V. V. Bukhalin, I. G. Abramov, V. E. Maizlish, Yu. V. Romanenko
{"title":"Synthesis of new 2,4,11,13-tetrasubstituted tribenzo[1,4]dioxocine-7,8-dicarbonitriles","authors":"V. L. Baklagin,&nbsp;V. V. Bukhalin,&nbsp;I. G. Abramov,&nbsp;V. E. Maizlish,&nbsp;Yu. V. Romanenko","doi":"10.1007/s11172-025-4535-4","DOIUrl":"10.1007/s11172-025-4535-4","url":null,"abstract":"<div><p>2,4,11,13-Tetrasubstituted tribenzo[1,4]dioxocine-7,8-dicarbonitriles were synthesized for the first time by the reaction of activated aromatic nucleophilic substitution between 3,3′,5,5′-tetra-R-biphenyl-2,2′-diols and 4-bromo-5-nitro- or 4,5-dichlorophthalonitriles. The yields of the target products were up to 68%.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"434 - 441"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716789","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
Alternative product of the cyclization of ortho-[O-(4-nitrobenzyl)]-substituted N-phenylquinone imine: structure and quantum chemical studies of the mechanism of formation 邻位-[O-（4-硝基苄基）]取代n -苯基醌亚胺环化的替代产物：结构及形成机理的量子化学研究
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4548-z
E. S. Khodykina, D. V. Steglenko, K. E. Shepelenko, O. P. Demidov, A. A. Kolodina
{"title":"Alternative product of the cyclization of ortho-[O-(4-nitrobenzyl)]-substituted N-phenylquinone imine: structure and quantum chemical studies of the mechanism of formation","authors":"E. S. Khodykina,&nbsp;D. V. Steglenko,&nbsp;K. E. Shepelenko,&nbsp;O. P. Demidov,&nbsp;A. A. Kolodina","doi":"10.1007/s11172-025-4548-z","DOIUrl":"10.1007/s11172-025-4548-z","url":null,"abstract":"<div><p><i>N</i>-(3′,5′-Di-<i>tert</i>-butyl-4′-hydroxyphenyl)-<i>N</i>-(2″-hydroxyphenyl)-4-nitrobenzamide was found to be an alternative product in the cyclization reaction of <i>O</i>-(4-nitrobenzyl) ether of <i>N</i>-phenylquinone imine proceeding through the formation of a benzoxazole ring. The structure of the product was established by <sup>1</sup>H and <sup>13</sup>C NMR spectroscopy, high-resolution MS spectrometry, and X-ray diffraction analysis. Quantum chemical calculations of plausible mechanism of the formation of this compound were carried out.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"538 - 543"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716802","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
Electrochemical reduction of spirocyclopentylmalonyl peroxide on smooth gold electrode in an aqueous medium 水介质中光滑金电极上过氧化螺环戊基丙二醇的电化学还原
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4545-2
Ya. A. Barsegyan, M. D. Vedenyapina, V. A. Vil’, M. M. Kazakova
{"title":"Electrochemical reduction of spirocyclopentylmalonyl peroxide on smooth gold electrode in an aqueous medium","authors":"Ya. A. Barsegyan,&nbsp;M. D. Vedenyapina,&nbsp;V. A. Vil’,&nbsp;M. M. Kazakova","doi":"10.1007/s11172-025-4545-2","DOIUrl":"10.1007/s11172-025-4545-2","url":null,"abstract":"<div><p>Electrochemical reduction of cyclic diacyl peroxide (2,3-dioxaspiro[4.4]nonane-1,4-dione or spirocyclopentylmalonyl peroxide) was explored using a smooth platinum anode/smooth gold cathode pair in an aqueous medium. This peroxide during the electrolysis was selectively reduced to cyclopentane-1,1-dicarboxylic acid in 85% yield, while any decarboxylation products were not even observed. Taking into account the data acquired previously by cyclic voltammetry, the conclusion was drawn about proceeding the reduction of peroxide <i>via</i> two successive one-electron steps of electron transfer.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"526 - 528"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716803","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
Effect of the nature of substituents in the imidazolium cation on the properties of monocationic ionic liquids 咪唑阳离子中取代基性质对单阳离子离子液体性质的影响
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4530-9
V. G. Krasovskiy, O. B. Gorbatsevich, T. V. Golubitchenko, L. M. Glukhov, E. A. Chernikova, L. M. Kustov
{"title":"Effect of the nature of substituents in the imidazolium cation on the properties of monocationic ionic liquids","authors":"V. G. Krasovskiy,&nbsp;O. B. Gorbatsevich,&nbsp;T. V. Golubitchenko,&nbsp;L. M. Glukhov,&nbsp;E. A. Chernikova,&nbsp;L. M. Kustov","doi":"10.1007/s11172-025-4530-9","DOIUrl":"10.1007/s11172-025-4530-9","url":null,"abstract":"<div><p>A series of bis(trifluoromethylsulfonyl)imide hydrophobic monocationic ionic liquids (ILs) with alkyl and siloxane substituents in the imidazolium cation were synthesized and their physicochemical properties were studied. The effect of the substituent nature in the imidazolium cation on the properties of the synthesized ILs was studied. The ILs obtained are characterized by a working temperature range from −70 to 300 °C, viscosity values in the range of 65–184 cSt (30 °C), and surface tension ranging from 23 to 31 mN m<sup>−1</sup> (20 °C), being promising lubricants for modification of hydrophobic solid surfaces.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"387 - 400"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716859","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
3-(Pyridin-2-yl)-1,2,4-triazine derivatives as promising ligands for iridium(iii) complexes 3-（吡啶-2-基）-1,2,4-三嗪衍生物作为铱（iii）配合物的有前途的配体
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4532-7
B. S. M. Al-Ghezi, I. S. Kovalev, D. S. Kopchuk, M. V. Sangalova, A. A. Noskova, A. F. Khasanov, A. S. Minin, E. S. Starnovskaya, K. D. Krasnoperova, N. S. Glebov, O. V. Shabunina, G. V. Zyryanov
{"title":"3-(Pyridin-2-yl)-1,2,4-triazine derivatives as promising ligands for iridium(iii) complexes","authors":"B. S. M. Al-Ghezi,&nbsp;I. S. Kovalev,&nbsp;D. S. Kopchuk,&nbsp;M. V. Sangalova,&nbsp;A. A. Noskova,&nbsp;A. F. Khasanov,&nbsp;A. S. Minin,&nbsp;E. S. Starnovskaya,&nbsp;K. D. Krasnoperova,&nbsp;N. S. Glebov,&nbsp;O. V. Shabunina,&nbsp;G. V. Zyryanov","doi":"10.1007/s11172-025-4532-7","DOIUrl":"10.1007/s11172-025-4532-7","url":null,"abstract":"<div><p>New iridium(<span>iii</span>) complexes with 3-(pyridin-2-yl)-1,2,4-triazine derivatives as <i>N,N</i>-type ligands were synthesized. The photophysical properties of the complexes were studied. The applicability of the complexes for biovisualization of, e.g., <i>Vero</i> cells selectively accumulated in endoplasmic reticulum is demonstrated.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"411 - 417"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716976","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 new mono- and dinitroimidazo[1,2-a]pyridines 新型单、二硝基咪唑[1,2-a]吡啶的合成
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-25 DOI: 10.1007/s11172-025-4506-9
S. A. Kolyadina, M. A. Bastrakov, A. M. Starosotnikov
{"title":"Synthesis of new mono- and dinitroimidazo[1,2-a]pyridines","authors":"S. A. Kolyadina,&nbsp;M. A. Bastrakov,&nbsp;A. M. Starosotnikov","doi":"10.1007/s11172-025-4506-9","DOIUrl":"10.1007/s11172-025-4506-9","url":null,"abstract":"<div><p>The study of the nitration of a number of imidazo[1,2-<i>a</i>]pyridines showed that the presence of a strong electron-donating substituent (OH, NH<sub>2</sub>) in the molecule is essential for the introduction of two nitro groups into the pyridine ring. On this basis, an approach to the synthesis of previously unknown 5,7- and 6,8-dinitroimidazo[1,2-<i>a</i>]pyridines was elaborated. In the case of electron-withdrawing substituents (Br), the reactions occurred predominantly at position 3 of the heterocyclic system. The obtained nitro derivatives are of interest as a basis for the synthesis of new polyfunctional imidazo[1,2-<i>a</i>]pyridines.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 1","pages":"115 - 119"},"PeriodicalIF":1.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698546","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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