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Group 10 metal complexes with redox-active pincer ligands: electronic structure and reactivity 具有氧化还原活性螯合配体的10族金属配合物：电子结构和反应性
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4677-4
I. K. Mikhailov, Z. N. Gafurov, A. V. Sukhov, A. A. Kagilev, A. A. Zagidullin, D. G. Yakhvarov
{"title":"Group 10 metal complexes with redox-active pincer ligands: electronic structure and reactivity","authors":"I. K. Mikhailov,&nbsp;Z. N. Gafurov,&nbsp;A. V. Sukhov,&nbsp;A. A. Kagilev,&nbsp;A. A. Zagidullin,&nbsp;D. G. Yakhvarov","doi":"10.1007/s11172-025-4677-4","DOIUrl":"10.1007/s11172-025-4677-4","url":null,"abstract":"<div><p>The continuing interest in pincer ligands is due to their unique ability to modify the properties of metal centers and thus the properties of the complexes they form. Using these ligands, one can finely tune the electronic and steric properties of the metal center. Moreover, the possibility to perform the redox process directly on the pincer ligand expands the range of applications of complexes based on them. The aim of this review is to analyze the state of the art in research into complexes of Group 10 metals (nickel, palladium, platinum) with redox-active pincer ligands. A brief introduction to the methods of investigation and modification of the electronic structure of the complexes is presented. The fundamental stoichiometric reactivity and relevant catalytic applications of the title systems are considered.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"1895 - 1913"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853569","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
Kinetics of the heterocyclization of (E)-1,5-diphenylpent-1-en-4-yn-3-one phenylhydrazone in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene 1,8-重氮杂环[5.4.0]十一-7-烯存在下(E)-1,5-二苯基戊-1-en-4- n-3 -1苯基腙杂环化动力学
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4688-1
D. A. Shkolnikov, I. S. Odin, D. M. Gusev, M. Yu. Ovchinnikov, S. A. Grabovskii, A. A. Golovanov
{"title":"Kinetics of the heterocyclization of (E)-1,5-diphenylpent-1-en-4-yn-3-one phenylhydrazone in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene","authors":"D. A. Shkolnikov,&nbsp;I. S. Odin,&nbsp;D. M. Gusev,&nbsp;M. Yu. Ovchinnikov,&nbsp;S. A. Grabovskii,&nbsp;A. A. Golovanov","doi":"10.1007/s11172-025-4688-1","DOIUrl":"10.1007/s11172-025-4688-1","url":null,"abstract":"<div><p>The kinetics of the cyclization of (<i>E</i>)-1,5-diphenylpent-1-en-4-yn-3-one phenylhydrazone in ethylene glycol in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene at temperatures ranging from 373.15 to 407.15 K was studied. The reaction product is (<i>E</i>)-1,2-diphenyl-4-styryl-1<i>H</i>-pyrazole in a yield of 99%. The use of catalysis allows one to shorten the reaction time with retaining the yield of the product. The mechanism of the formation of a complex between the reactant and catalyst and the proton transfer from the reactant to the catalyst, which decreases the activation barrier for cyclization, is considered.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2038 - 2043"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853571","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
Heterogeneous catalytic hydrogenation of 5-ethylidene-2-norbornene in the liquid phase 5-乙基-2-降冰片烯液相非均相催化加氢反应
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4686-3
V. V. Zamalyutin, E. V. Okuneva, A. Yu. Putin, A. I. Nichugovskii, V. R. Flid
{"title":"Heterogeneous catalytic hydrogenation of 5-ethylidene-2-norbornene in the liquid phase","authors":"V. V. Zamalyutin,&nbsp;E. V. Okuneva,&nbsp;A. Yu. Putin,&nbsp;A. I. Nichugovskii,&nbsp;V. R. Flid","doi":"10.1007/s11172-025-4686-3","DOIUrl":"10.1007/s11172-025-4686-3","url":null,"abstract":"<div><p>The liquid-phase hydrogenation of <i>E/Z</i>-5-ethylidene-2-norbornene (ENB) in the presence of the 0.25%Pd/γ-Al<sub>2</sub>O<sub>3</sub> palladium catalyst (PC-25) under mild conditions proceeds sequentially and stereoselectively <i>via</i> the intermediate product <i>E/Z</i>-2-ethylidenenorbornane to form <i>endo/exo</i>-2-ethylnorbornane. All reaction products were identified, the main reaction routes were determined, and the material balance was studied. No destruction of the norbornane framework occurs in the reaction. The kinetic data indicate a distinct separation of the process steps and quantitative hydrogenation of the norbornene bond in the first step. The zero kinetic order with respect to substrate was determined for the first step. The activation energies for each step were determined (16 kJ mol<sup>−1</sup> for the hydrogenation of the norbornene double bond in <i>E/Z</i>-ENB and 25 kJ mol<sup>−1</sup> for the hydrogenation of the ethylidene bond). The decisive role of the additional strain energy concentrated on the intracyclic double bond of norbornenes in selective adsorption on the active site of the catalyst and, as a consequence, the full kinetic separation of the steps were shown.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2019 - 2025"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853599","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
Election of the Full Members (Academicians), Corresponding Members, and Foreign Members of the Russian Academy of Sciences 选举俄罗斯科学院的正式院士、通讯院士和外籍院士
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4709-0
{"title":"Election of the Full Members (Academicians), Corresponding Members, and Foreign Members of the Russian Academy of Sciences","authors":"","doi":"10.1007/s11172-025-4709-0","DOIUrl":"10.1007/s11172-025-4709-0","url":null,"abstract":"","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2234 - 2256"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853612","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 bis(dispiro[indolinone-pyrrolidine-imidazolones]) 双吡罗[吲哚啉-吡咯烷-咪唑酮]的合成
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4693-4
V. S. Polyakov, E. V. Pervakova, N. V. Zyk, E. K. Beloglazkina
{"title":"Synthesis of bis(dispiro[indolinone-pyrrolidine-imidazolones])","authors":"V. S. Polyakov,&nbsp;E. V. Pervakova,&nbsp;N. V. Zyk,&nbsp;E. K. Beloglazkina","doi":"10.1007/s11172-025-4693-4","DOIUrl":"10.1007/s11172-025-4693-4","url":null,"abstract":"<div><p>A method for the synthesis of bis(dispiro[indolinone-pyrrolidine-imidazolones]) spirocyclic motif of which is linked by the alkyl spacers trough the <i>para</i>-positions of aryl substituents in the pyrrolidone ring was developed. The starting compound, <i>p</i>-hydroxybenzaldehyde, was alkylated with α,ω-dihaloalkanes C<sub>4</sub>—C<sub>10</sub>, the resulting product was involved in the reaction with either 2-thiohydantoin or the glycine—isothiocyanate mixture and, finally, azomethine ylide generated from isatin and <i>N</i>-methylglycine was added to the resulting bis-arylidenethiohydantoins.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2092 - 2101"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853524","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 investigation of antiproliferative activity of novel analogs of combretastatin A4 of isoxazole series 异恶唑系列康布他汀A4新型类似物的合成及抗增殖活性研究
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4702-7
M. S. Kuzmina, N. E. Astakhova, D. A. Vasilenko, K. N. Sedenkova, Yu. K. Grishin, Yu. A. Gracheva, E. R. Milaeva, E. B. Averina
{"title":"Synthesis and investigation of antiproliferative activity of novel analogs of combretastatin A4 of isoxazole series","authors":"M. S. Kuzmina,&nbsp;N. E. Astakhova,&nbsp;D. A. Vasilenko,&nbsp;K. N. Sedenkova,&nbsp;Yu. K. Grishin,&nbsp;Yu. A. Gracheva,&nbsp;E. R. Milaeva,&nbsp;E. B. Averina","doi":"10.1007/s11172-025-4702-7","DOIUrl":"10.1007/s11172-025-4702-7","url":null,"abstract":"<div><p>A series of novel analogs of well-known antitumor agent combretastatin A4 of the isoxazole series were obtained. The target compounds were synthesized using sulfonylation reaction of 4-amino-5-methyl-3-(trimethoxyphenyl)isoxazole. Antiproliferative activity of the obtained isoxazole derivatives against four cancer cell lines (HCT116, PC3, A2780, A2780cis) was investigated.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2184 - 2189"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853601","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
Copper salts immobilized on SiO2 and Al2O3 as effective catalysts for aminomethylation of phenols SiO2和Al2O3固载铜盐作为苯酚氨基甲基化的有效催化剂
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4704-5
M. G. Shaibakova, L. K. Dilmukhametova, I. R. Ramazanov
{"title":"Copper salts immobilized on SiO2 and Al2O3 as effective catalysts for aminomethylation of phenols","authors":"M. G. Shaibakova,&nbsp;L. K. Dilmukhametova,&nbsp;I. R. Ramazanov","doi":"10.1007/s11172-025-4704-5","DOIUrl":"10.1007/s11172-025-4704-5","url":null,"abstract":"<div><p>A selective one-pot synthesis of substituted 2-(dimethylaminomethyl)phenols has been developed, affording yields of 90–98%. The method is based on the reaction of phenols with bis(dimethylamino)methane, catalyzed by copper(<span>i</span>) salts immobilized on SiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub></p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2198 - 2201"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853607","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
Inserting a radical label at position 9 of bispidine using the Horner—Wadsworth—Emmons reaction to create a spin-labeled organocatalyst 利用Horner-Wadsworth-Emmons反应在比必定的第9位插入自由基标记，制备自旋标记的有机催化剂
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4687-2
M. O. Ermakov, A. V. Medvedko, A. M. Zakirov, E. V. Tretyakov, S. Z. Vatsadze
{"title":"Inserting a radical label at position 9 of bispidine using the Horner—Wadsworth—Emmons reaction to create a spin-labeled organocatalyst","authors":"M. O. Ermakov,&nbsp;A. V. Medvedko,&nbsp;A. M. Zakirov,&nbsp;E. V. Tretyakov,&nbsp;S. Z. Vatsadze","doi":"10.1007/s11172-025-4687-2","DOIUrl":"10.1007/s11172-025-4687-2","url":null,"abstract":"<div><p>A bispidine derivative containing a paramagnetic moiety at position 9 was first synthesized by the Horner—Wadsworth—Emmons reaction between bispidine and a suitable radical-labeled reagent. The structures of diethyl {2-[(2,2,6,6-tetramethyl-1-oxylpiperidin-4-yl)amino]-2-oxoethyl}phosphonate, the free radical used as a reagent in this reaction, and 2-(3-benzyl-3,7-diazabicyclo[3.3.1]nonan-9-ylidene)-<i>N</i>-(2,2,6,6-tetramethyl-1-oxylpiperidin-4-yl)acetamide, the target radical, were confirmed using a combination of physicochemical analysis methods (mass spectrometry, EPR spectroscopy, and X-ray diffraction). Using the obtained spin-labeled catalyst, the EPR monitoring of the Michael reaction (addition of diethyl malonate to nitrostyrene) was carried out for the first time, which made it possible to formulate principles for designing catalysts with reporter groups.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2026 - 2037"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853605","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
Pyrazolylbenzoic acids based on polyfluoroalkylated lithium 1,3-diketonates bearing acetal groups 含缩醛基团的多氟烷基化1,3-二酮酸锂基吡唑基苯甲酸
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4694-3
Yu. S. Kudyakova, Yu. O. Edilova, E. A. Osipova, P. A. Slepukhin, Ya. V. Burgart, V. I. Saloutin, D. N. Bazhin
{"title":"Pyrazolylbenzoic acids based on polyfluoroalkylated lithium 1,3-diketonates bearing acetal groups","authors":"Yu. S. Kudyakova,&nbsp;Yu. O. Edilova,&nbsp;E. A. Osipova,&nbsp;P. A. Slepukhin,&nbsp;Ya. V. Burgart,&nbsp;V. I. Saloutin,&nbsp;D. N. Bazhin","doi":"10.1007/s11172-025-4694-3","DOIUrl":"10.1007/s11172-025-4694-3","url":null,"abstract":"<div><p>An alternative synthesis was developed for the preparation of polytopic ligands, which combine both the NH-pyrazole and carboxyl moieties, based on polyfluoroalkylated lithium 1,3-diketonates bearing acetal groups. The proposed approach involves the transformation of diketonates into the corresponding acetylpyrazoles followed by the condensation with <i>p</i>-hydrazinobenzoic acid. The reaction of unsubstituted hydrazine with the condensation product of diketonate and 4-hydrazinobenzoic acid results in the transamination to form bis-pyrazoles bearing a hydrazone moiety, which does not contain an arylcarboxyl substituent.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"2102 - 2113"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853525","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
Computational search for molecular magnetic switches based on radical derivatives of sterically hindered dixanthylidenes 基于位阻二芳基衍生物的分子磁开关的计算搜索
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-08-16 DOI: 10.1007/s11172-025-4682-7
A. G. Starikov, M. G. Chegerev, A. A. Starikova, V. I. Minkin
{"title":"Computational search for molecular magnetic switches based on radical derivatives of sterically hindered dixanthylidenes","authors":"A. G. Starikov,&nbsp;M. G. Chegerev,&nbsp;A. A. Starikova,&nbsp;V. I. Minkin","doi":"10.1007/s11172-025-4682-7","DOIUrl":"10.1007/s11172-025-4682-7","url":null,"abstract":"<div><p>Computer modeling (DFT B3LYP-D3BJ/6-311++G(d,p)) of the electronic structure was performed, and the energy characteristics and magnetic behavior of isomers of dixanthylidene derivatives containing stable radicals (<i>tert</i>-butyl nitroxide, 1,2,3,5-dithiadiazolyl, 1,5-dimethyl-6-oxoverdazyl, and fluorenyl) at positions 2 and 2′ were estimated. It was shown that the presence and specific features of interactions of unpaired electron spins in these systems depend on the isomer type and radical group structures. Due to the predicted ability of the fluorenyl radical-bearing compound to change magnetic properties as a result of isomerization, we consider it as a spin switch.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 7","pages":"1976 - 1985"},"PeriodicalIF":1.7,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853564","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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