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Salen cobalt complexes in polycarbonate synthesis: bimodal versus unimodal molecular weight distribution 聚碳酸酯合成中的Salen钴配合物：双峰与单峰分子量分布
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4699-y
S. A. Rzhevskii, O. V. Shurupova, M. A. Topchii, A. F. Asachenko, A. V. Plutalova, I. P. Beletskaya, E. V. Chernikova
{"title":"Salen cobalt complexes in polycarbonate synthesis: bimodal versus unimodal molecular weight distribution","authors":"S. A. Rzhevskii,&nbsp;O. V. Shurupova,&nbsp;M. A. Topchii,&nbsp;A. F. Asachenko,&nbsp;A. V. Plutalova,&nbsp;I. P. Beletskaya,&nbsp;E. V. Chernikova","doi":"10.1007/s11172-025-4699-y","DOIUrl":"10.1007/s11172-025-4699-y","url":null,"abstract":"<div><p>The copolymerization of epoxides and carbon dioxide under the action of (salen)-cobalt(<span>iii</span>) complexes and ammonium or phosphonium salts often results in the formation of polycarbonates with a bimodal molecular weight distribution. A method was proposed for preparing poly(propylene carbonate) with a unimodal molecular weight distribution due to the use of coordinating additives: water and alcohols. Possible reasons for the observed effects and the polymerization mechanism are discussed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2156 - 2168"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853566","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
Dinitrosyl 5-(3-pyridyl)-4H-1,2,4-triazole-3-thiolyl iron complex as a promising anti-inflammatory agent: influence on cyclooxygenase-2 and interaction with serum albumin 二硝基5-（3-吡啶基）- 4h -1,2,4-三唑-3-硫基铁配合物作为一种有前途的抗炎剂：对环氧化酶-2的影响及其与血清白蛋白的相互作用
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4703-6
L. M. Mazina, O. V. Pokidova, V. B. Luzhkov, K. S. Ruina, N. A. Sanina
{"title":"Dinitrosyl 5-(3-pyridyl)-4H-1,2,4-triazole-3-thiolyl iron complex as a promising anti-inflammatory agent: influence on cyclooxygenase-2 and interaction with serum albumin","authors":"L. M. Mazina,&nbsp;O. V. Pokidova,&nbsp;V. B. Luzhkov,&nbsp;K. S. Ruina,&nbsp;N. A. Sanina","doi":"10.1007/s11172-025-4703-6","DOIUrl":"10.1007/s11172-025-4703-6","url":null,"abstract":"<div><p>The effect of anionic dinitrosyl iron complex (DNIC) with 5-(3-pyridyl)-4<i>H</i>-1,2,4-triazole-3-thiolyl (complex <b>1</b>) on cyclooxygenase-2 (COX-2, enzyme induced by inflammatory stimuli and cytokines) was examined. Complex <b>1</b> was found to be an efficient inhibitor of COX-2 functions, which provides its prospects for further study as a potential anti-inflammatory drug. The interaction of complex <b>1</b> with serum albumin, which is the basic blood carrier protein, was studied. In the presence of albumin, NO generation by complex <b>1</b> becomes more prolonged than that in a buffer solution, while the formation of a high-molecular-weight protein-bound dinitrosyl complex is observed in the system. The Stern—Volmer constant was calculated: <i>K</i><sub>SV</sub> = 5.4•10<sup>5</sup> L mol<sup>−1</sup>. Molecular docking shows that DNIC binding to the protein occurs at the junction of three protein domains, and the lowest energy positions of anionic complex <b>1</b> are located in subdomain Ib from the side of domain III surrounded by positively charged side groups of lysine 114 and arginines 144, 185, and 458.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2190 - 2197"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853606","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
General Meeting of the Division of Chemistry and Materials Science of the Russian Academy of Sciences 俄罗斯科学院化学与材料科学部全体会议
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4707-2
Yu. V. Smirnova
{"title":"General Meeting of the Division of Chemistry and Materials Science of the Russian Academy of Sciences","authors":"Yu. V. Smirnova","doi":"10.1007/s11172-025-4707-2","DOIUrl":"10.1007/s11172-025-4707-2","url":null,"abstract":"<div><p>The scientific and scientific-organizational activities of Division of Chemistry and Materials Science of the Russian Academy of Sciences in 2024 are highlighted. The most significant results obtained by scientists of the Division Institutes in 2024 are given.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2214 - 2223"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853610","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
Metal-free organic synthesis in liquefied gases: achievements and prospects 液化气中无金属有机合成：成就与展望
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4678-3
I. V. Kuchurov, M. N. Zharkov, S. G. Zlotin
{"title":"Metal-free organic synthesis in liquefied gases: achievements and prospects","authors":"I. V. Kuchurov,&nbsp;M. N. Zharkov,&nbsp;S. G. Zlotin","doi":"10.1007/s11172-025-4678-3","DOIUrl":"10.1007/s11172-025-4678-3","url":null,"abstract":"<div><p>The potential of carbon dioxide and 1,1,1,2-tetrafluoroethane in their liquid and supercritical states as environmentally friendly (green) solvents for metal-free liquid-phase chemical transformations has been substantiated. This review summarizes data on <i>N</i>-, <i>O</i>-, and <i>C</i>-nitration carried out in these media. Particular attention is given to the application of liquid (liq-CO<sub>2</sub>) and supercritical carbon dioxide (sc-CO<sub>2</sub>) in condensation of carbonyl compounds with amines, including the one-pot tandem transformations of the resulting imines. The oxidative functionalization of cycloalkanes induced by near-UV light in the presence of nitrogen dioxide under sc-CO<sub>2</sub> conditions is discussed. The effectiveness of sc-CO<sub>2</sub> as a solvent in photooxidation of alcohols and sulfides with molecular oxygen in the presence of such metal-free photocatalysts as 2-fluoroanthraquinone and graphitic carbon nitride is demonstrated. Additionally, recent advances in asymmetric aldol reactions, conjugate additions, and cascade reactions catalyzed by chiral amines in liq-CO<sub>2</sub> and sc-CO<sub>2</sub> media are reviewed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"1914 - 1928"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853615","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
Chiral C,N-palladacycles based on terpene ligands 基于萜烯配体的手性C， n -杂环
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4679-2
Ya. A. Gur’eva, O. A. Zalevskaya, A. V. Kutchin
{"title":"Chiral C,N-palladacycles based on terpene ligands","authors":"Ya. A. Gur’eva,&nbsp;O. A. Zalevskaya,&nbsp;A. V. Kutchin","doi":"10.1007/s11172-025-4679-2","DOIUrl":"10.1007/s11172-025-4679-2","url":null,"abstract":"<div><p>This review covers and summarizes the results acquired on reactions of the cyclopalladation of nitrogen-containing derivatives of natural terpenoids. Bornane and pinane derivatives of benzylamines are universal scaffolds for the synthesis of chiral palladacycles of various types. Problems of the selectivity of cyclopalladation of terpene ligand were discussed. It was demonstrated that the cyclometallation can proceed via different routes, either at the aromatic ring of benzylamine moiety or at the terpene substituent, depending on the selection of palladating agent and on the structural features of ligand.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"1929 - 1939"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853563","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 functionalized mono-, bis-, and tris(spirophosphoranyl) amines and amino acids 合成功能化的单、双、三（螺磷酰）胺和氨基酸
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4698-z
Yu. N. Bubnov, A. A. Prishchenko, M. V. Livantsov, O. P. Novikova, L. I. Livantsova, S. V. Baranin
{"title":"Synthesis of functionalized mono-, bis-, and tris(spirophosphoranyl) amines and amino acids","authors":"Yu. N. Bubnov,&nbsp;A. A. Prishchenko,&nbsp;M. V. Livantsov,&nbsp;O. P. Novikova,&nbsp;L. I. Livantsova,&nbsp;S. V. Baranin","doi":"10.1007/s11172-025-4698-z","DOIUrl":"10.1007/s11172-025-4698-z","url":null,"abstract":"<div><p>Convenient syntheses of functionalized PCH<sub>2</sub>N-containing mono-, bis-, and tris-(spirophosphoranylmethyl)amines and analogous amino acids based on hydrospirophosphoranes of the 1,4,6,9-tetraoxa-5λ<sup>5</sup>-phosphaspiro[4.4]nonane type using mono-, bis-, and tris-aminomethylating agents have been developed. Transesterification of diethyl esters of N,N-disubstituted aminomethylphosphonous acids with ethylene glycol is accompanied by a redox process and furnishes aminomethylspirophosphoranes. The target compounds are of interest as biologically active substances, polydentate chelating ligands, and also as promising monomers for the synthesis of phosphorus-containing polymers.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2143 - 2155"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853600","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, structure, and properties of new solid thermoplastic butadiene polymers 新型固体热塑性丁二烯聚合物的合成、结构和性能
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4705-4
D. M. Ulyanova, N. A. Sablina, P. M. Tolstoy
{"title":"Synthesis, structure, and properties of new solid thermoplastic butadiene polymers","authors":"D. M. Ulyanova,&nbsp;N. A. Sablina,&nbsp;P. M. Tolstoy","doi":"10.1007/s11172-025-4705-4","DOIUrl":"10.1007/s11172-025-4705-4","url":null,"abstract":"<div><p>It has been established for the first time that cationic polymerization of butadiene in the presence of the initiating system diethylaluminum chloride—allyl chloride allows the synthesis of fully soluble solid thermoplastic polymers with reduced unsaturation (40–48 mol.% of theoretical) and high glass transition (56–65 °C) and softening point (126–193 °C) temperatures. The structure of the synthesized polybutadiene macromolecules, including the structure of the head units consisting of allyl fragments of the polymerization initiator (allyl chloride) connected with the 1,4-<i>trans</i>-unit of polybutadiene, has been determined. The resulting polymers may find a practical application in the production of adhesive and sealing compositions.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2202 - 2206"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853608","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 structure of low-coordinate lanthanide(iii) complexes with a 1,8-dibromocarbazolide ligand 1,8-二溴咔唑啉低配位镧系（iii）配合物的合成与结构
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-07-10 DOI: 10.1007/s11172-024-4662-3
H. Zakaria, D. M. Lyubov, Yu. V. Nelyubina, A. A. Trifonov
{"title":"Synthesis and structure of low-coordinate lanthanide(iii) complexes with a 1,8-dibromocarbazolide ligand","authors":"H. Zakaria,&nbsp;D. M. Lyubov,&nbsp;Yu. V. Nelyubina,&nbsp;A. A. Trifonov","doi":"10.1007/s11172-024-4662-3","DOIUrl":"10.1007/s11172-024-4662-3","url":null,"abstract":"<div><p>Rare-earth metal tris(carbazolide) complexes [Ln(NC<sub>12</sub>H<sub>4</sub>-3,6-Bu<sup>t</sup><sub>2</sub>-1,8-Br<sub>2</sub>)<sub>3</sub>] (Ln = Y, Tb, Dy, Ho) were synthesized by the alkane elimination starting from 1,8-dibromo-3,6-di-<i>tert</i>-butyl-9<i>H</i>-carbazole (3,6-Bu<sup>t</sup><sub>2</sub>-1,8-Br<sub>2</sub>CarbH) and [Ln(CH<sub>2</sub>SiMe<sub>3</sub>)<sub>3</sub>(THF)<sub>2</sub>] in a molar ratio of 3: 1. According to the X-ray diffraction analysis, the complexes [Ln(NC<sub>12</sub>H<sub>4</sub>-3,6-Bu<sup>t</sup><sub>2</sub>-1,8-Br<sub>2</sub>)<sub>3</sub>] contain formally three-coordinate Ln atoms and crystallize as racemates consisting of equal amounts of Δ and Λ enantiomers, differing in the direction of inclination of the carbazolide planes with respect to the plane formed by the nitrogen atoms of three carbazolide ligands.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 6","pages":"1778 - 1785"},"PeriodicalIF":1.7,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164354","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
Reactions of calcium carbide catalyzed by transition metals: recent advances and prospects 过渡金属催化电石反应的研究进展及展望
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-07-10 DOI: 10.1007/s11172-024-4649-0
Yu. V. Gyrdymova, A. N. Potorochenko
{"title":"Reactions of calcium carbide catalyzed by transition metals: recent advances and prospects","authors":"Yu. V. Gyrdymova,&nbsp;A. N. Potorochenko","doi":"10.1007/s11172-024-4649-0","DOIUrl":"10.1007/s11172-024-4649-0","url":null,"abstract":"<div><p>The review systematizes and summarizes information on chemical transformations of calcium carbide catalyzed by transition metals. The successful application of CaC<sub>2</sub> was demonstrated for obtaining mono- and disubstituted alkynes, a wide range of heterocyclic compounds, in particular pharmaceutically important triazoles and imidazoles. Calcium carbide is a convenient reagent for development of organic syntheses based on a carbon-neutral cycle.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 6","pages":"1576 - 1591"},"PeriodicalIF":1.7,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164356","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 silyl derivatives of 1H-indole-3-acetic acid 1h -吲哚-3-乙酸硅基衍生物的合成
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-07-10 DOI: 10.1007/s11172-024-4675-y
A. S. Soldatenko, A. I. Albanov, N. F. Lazareva
{"title":"Synthesis of silyl derivatives of 1H-indole-3-acetic acid","authors":"A. S. Soldatenko,&nbsp;A. I. Albanov,&nbsp;N. F. Lazareva","doi":"10.1007/s11172-024-4675-y","DOIUrl":"10.1007/s11172-024-4675-y","url":null,"abstract":"<div><p>Trimethylsilyl (1-trimethylsilyl-1<i>H</i>-indol-3-yl)acetate, (chloromethyl)(dimethyl)silyl (1<i>H</i>-indol-3-yl)acetate, and (chloromethyl)(dimethyl)silyl [1-(chloromethyl)(dimethyl)-silyl-1<i>H</i>-indol-3-yl]acetate were synthesized by silylation of 1<i>H</i>-indole-3-acetic acid with hexamethyldisilazane, Me<sub>3</sub>SiCl, and ClCH<sub>2</sub>SiMe<sub>2</sub>Cl. The structures of obtained compounds were confirmed by multinuclear NMR spectroscopy and IR spectroscopy.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 6","pages":"1887 - 1890"},"PeriodicalIF":1.7,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164368","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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