发布求助
文献互助 智能选刊 最新文献

Russian Chemical Bulletin最新文献

筛选
英文 中文
Synthesis of trimethylsilyl ethers of 1-phenylazo- and 1-(2,4-dimethylphenylazo)-2-naphthols
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4551-4
A. S. Soldatenko, A. I. Albanov, N. F. Lazareva
{"title":"Synthesis of trimethylsilyl ethers of 1-phenylazo- and 1-(2,4-dimethylphenylazo)-2-naphthols","authors":"A. S. Soldatenko, A. I. Albanov, N. F. Lazareva","doi":"10.1007/s11172-025-4551-4","DOIUrl":"10.1007/s11172-025-4551-4","url":null,"abstract":"","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"551 - 553"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716795","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
3,4-Dimethoxypyridine-2-carbaldehyde in the synthesis of quinazolin-4(3H)-ones: partial demethylation at the dehydrogenation step
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4540-7
E. S. Starnovskaya, A. L. Muzyka, A. A. Yurtaeva, A. E. Kopotilova, D. S. Kopchuk, V. S. Gaviko, O. S. Taniya, E. V. Nosova, G. V. Zyryanov, V. L. Rusinov
{"title":"3,4-Dimethoxypyridine-2-carbaldehyde in the synthesis of quinazolin-4(3H)-ones: partial demethylation at the dehydrogenation step","authors":"E. S. Starnovskaya,&nbsp;A. L. Muzyka,&nbsp;A. A. Yurtaeva,&nbsp;A. E. Kopotilova,&nbsp;D. S. Kopchuk,&nbsp;V. S. Gaviko,&nbsp;O. S. Taniya,&nbsp;E. V. Nosova,&nbsp;G. V. Zyryanov,&nbsp;V. L. Rusinov","doi":"10.1007/s11172-025-4540-7","DOIUrl":"10.1007/s11172-025-4540-7","url":null,"abstract":"<div><p>The cyclocondensation of 2-aminobenzamide with 3,4-dimethoxypyridine-2-carbaldehyde affords a mixture of 2-(3,4-dimethoxypyridin-2-yl)-2,3-dihydroquinazolin-4(1<i>H</i>)-one and its open-chain tautomer. The dehydrogenation of these compounds with benzoquinones (DDQ, chloranil) as oxidants, giving 2-(pyridin-2-yl)quinazolin-4(3<i>H</i>)-ones, is accompanied by the demethylation of the methoxy group at the C(3) position of the 2-pyridyl moiety. When using 2-methoxy- or 2,3,4-trimethoxybenzaldehydes as deaza analogs of this aldehyde, the demethylation does not occur in the last step regardless of the nature of the oxidant.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"483 - 488"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716797","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
New aspects of verdazyl chemistry
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4526-5
G. N. Lipunova, T. G. Fedorchenko, A. V. Shchepochkin, O. N. Chupakhin
{"title":"New aspects of verdazyl chemistry","authors":"G. N. Lipunova,&nbsp;T. G. Fedorchenko,&nbsp;A. V. Shchepochkin,&nbsp;O. N. Chupakhin","doi":"10.1007/s11172-025-4526-5","DOIUrl":"10.1007/s11172-025-4526-5","url":null,"abstract":"<div><p>The review is concerned with recent advances in the synthesis of homo- and heteroradical blocks for multi-spin systems, new functionalized verdazyls as components of organic batteries and spintronic devices, verdazyl-containing monomers and light-emitting radicals, as well as contrast agents and photosensitizers for medical applications.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"328 - 353"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716860","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
Features of the reaction of carbon dioxide with cyclohexene oxide
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4550-5
I. S. Gabov, A. V. Pestov
{"title":"Features of the reaction of carbon dioxide with cyclohexene oxide","authors":"I. S. Gabov,&nbsp;A. V. Pestov","doi":"10.1007/s11172-025-4550-5","DOIUrl":"10.1007/s11172-025-4550-5","url":null,"abstract":"","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"547 - 550"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716796","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
Recent advances in chemistry of β-cyano ketones
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4525-6
N. A. Aksenov, D. A. Aksenov, A. E. Kurlikov, I. V. Aksenova, A. V. Aksenov
{"title":"Recent advances in chemistry of β-cyano ketones","authors":"N. A. Aksenov,&nbsp;D. A. Aksenov,&nbsp;A. E. Kurlikov,&nbsp;I. V. Aksenova,&nbsp;A. V. Aksenov","doi":"10.1007/s11172-025-4525-6","DOIUrl":"10.1007/s11172-025-4525-6","url":null,"abstract":"<div><p>The review is focused on the modern trends in the synthesis and chemical properties of β-cyano ketones and transformations of α,β-unsaturated carbonyl compounds taking place in the presence of the cyanide anion and its synthetic equivalents. The state-of-the art analysis of this research field and insights for future studies are given.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"305 - 327"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716973","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
A new class of hybrid molecules based on azolo[1,5-a]pyrimidin-7-ones and 3-ethoxycarbonyl-1-ethyl-6-fluoroquinolin-4(1H)-one linked by a 1,2,3-triazole spacer
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4539-0
S. V. Androv, K. V. Savateev, S. K. Kotovskaya, V. L. Rusinov
{"title":"A new class of hybrid molecules based on azolo[1,5-a]pyrimidin-7-ones and 3-ethoxycarbonyl-1-ethyl-6-fluoroquinolin-4(1H)-one linked by a 1,2,3-triazole spacer","authors":"S. V. Androv,&nbsp;K. V. Savateev,&nbsp;S. K. Kotovskaya,&nbsp;V. L. Rusinov","doi":"10.1007/s11172-025-4539-0","DOIUrl":"10.1007/s11172-025-4539-0","url":null,"abstract":"<div><p>An atom-efficient synthesis of hybrid molecules based on 7-azido-3-ethoxycarbonyl-1-ethyl-6-fluoroquinolin-4(1<i>H</i>)-one and 4-(prop-2-yn-1-yl)azolo[1,5-<i>a</i>]pyrimidin-7-ones by the azide-alkyne cycloaddition was developed. The synthetic approaches to precursors of hybrid molecules, 4-(prop-2-yn-1-yl)azolo[1,5-<i>a</i>]pyrimidin-7-ones, by alkylation of the corresponding NH-acids were optimized. Alkylation of 1,2,4-triazolo[1,5-<i>a</i>]pyrimidin-7-ones gave the products of alkylation at N(3) and N(4) atoms. Conditions for regioselective synthesis of <i>N</i>(4)-(prop-2-yn-1-yl)triazolopyrimidines were developed.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"469 - 482"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716880","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
Film materials based on non-covalent hybrids of two-dimensional graphene oxide nanosheets with the spin-crossover molecular complex salt [Et4N][FeIII(5Cl-thsa)2]
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4531-8
N. G. Spitsyna, M. A. Blagov, A. I. Dmitriev, N. N. Dremova, M. V. Zhidkov, S. V. Simonov, A. S. Lobach
{"title":"Film materials based on non-covalent hybrids of two-dimensional graphene oxide nanosheets with the spin-crossover molecular complex salt [Et4N][FeIII(5Cl-thsa)2]","authors":"N. G. Spitsyna,&nbsp;M. A. Blagov,&nbsp;A. I. Dmitriev,&nbsp;N. N. Dremova,&nbsp;M. V. Zhidkov,&nbsp;S. V. Simonov,&nbsp;A. S. Lobach","doi":"10.1007/s11172-025-4531-8","DOIUrl":"10.1007/s11172-025-4531-8","url":null,"abstract":"<div><p>We consider the preparation of film hybrid composite materials formed by a self-assembly process <i>via</i> the non-covalent interactions of surface functional groups and graphene domains of graphene oxide (GO) nanosheets with anionic spin-crossover complexes [Fe<sup>III</sup>(5Cl-thsa)<sub>2</sub>]<sup>−</sup> (5Cl-thsa<sup>2−</sup> is 5-chlorosalicylaldehyde thiosemicarbazone) and cations [Et<sub>4</sub>N]<sup>+</sup> of the intercalant salt [Et<sub>4</sub>N][Fe<sup>III</sup>(5Cl-thsa)<sub>2</sub>] (<b>1</b>). The introduction of salt <b>1</b> into the interlayer space of the GO nanosheets was observed for the first time, followed by the subsequent formation of a layered GO-<b>1</b> hybrid material film, while the reversible thermally induced spin transition was maintained. The GO-<b>1</b> hybrid material films were characterized by scanning electron microscopy, energy dispersive analysis, IR and Raman spectroscopy, and powder X-ray diffraction; their magnetic properties were studied. Comparative studies of the magnetic properties of complex <b>1</b> and the GO-<b>1</b> hybrid material film showed the influence of the GO nanosheet matrix on the nature and completeness of the spin transition of intercalant <b>1</b>. The semi-transition temperature of the GO-<b>1</b> hybrid material (<i>T</i><sub>½</sub> = 228 K) is shifted by ∼20 K towards the high-temperature region compared to that of the starting salt <b>1</b> (<i>T</i><sub>½</sub> = 208 K).</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"401 - 410"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716929","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
Oxidative degradation kinetics of ion-exchange resins with the polystyrene-divinylbenzene matrix using the Fenton process
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4528-3
M. M. Kozlova, V. F. Markov, L. N. Maskaeva, S. Santra, G. V. Zyryanov, A. Majee
{"title":"Oxidative degradation kinetics of ion-exchange resins with the polystyrene-divinylbenzene matrix using the Fenton process","authors":"M. M. Kozlova,&nbsp;V. F. Markov,&nbsp;L. N. Maskaeva,&nbsp;S. Santra,&nbsp;G. V. Zyryanov,&nbsp;A. Majee","doi":"10.1007/s11172-025-4528-3","DOIUrl":"10.1007/s11172-025-4528-3","url":null,"abstract":"<div><p>The problem of reprocessing of used ion-exchange resins with a polystyrene-divinylbenzene matrix by oxidative degradation using the Fenton process is considered. The kinetics of the process was studied in the presence of 5–25% solutions of H<sub>2</sub>O<sub>2</sub> containing catalytic additives of copper(<span>ii</span>;) and iron(<span>ii</span>;,<span>iii</span>) salts. Electron microscopic studies revealed characteristic changes in the surface morphology and granule shape of the ionexchange resins during oxidative decomposition.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"361 - 375"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716861","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
Reaction of 4,5-dimethyl-2-(perfluoroindan-5-yl)-1H-imidazol-1-ol with aliphatic alcohols
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4536-3
V. I. Krasnov, A. S. Vinogradov, I. A. Os’kina
{"title":"Reaction of 4,5-dimethyl-2-(perfluoroindan-5-yl)-1H-imidazol-1-ol with aliphatic alcohols","authors":"V. I. Krasnov,&nbsp;A. S. Vinogradov,&nbsp;I. A. Os’kina","doi":"10.1007/s11172-025-4536-3","DOIUrl":"10.1007/s11172-025-4536-3","url":null,"abstract":"<div><p>The reaction of 4,5-dimethyl-2-(perfluoroindan-5-yl)-1<i>H</i>-imidazol-1-ol with aliphatic alcohols produced 6-alkoxy-substituted 2-(perfluoroindan-5-yl)-1<i>H</i>-imidazol-1-ols. The structures of the obtained compounds were confirmed by <sup>1</sup>H, <sup>19</sup>F, <sup>13</sup>C, and <sup>15</sup>N NMR spectroscopy. NMR studies showed that 4,5-dialkyl-2-(6-alkoxy-1,1,2,2,3,3,4,7-octafluoroindan-5-yl)-1<i>H</i>-imidazol-1-ols demonstrated a shift in tautomeric equilibrium from the <i>N</i>-hydroxy tautomer in DMSO-d<sub>6</sub> solution toward an increase in the <i>N</i>-oxide form fraction in CD<sub>3</sub>OD solution.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"442 - 450"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716878","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
Supported mononuclear carbonyl ruthenate as a catalyst for gas-phase ammonia synthesis. Effect of short-term exposure of the catalyst to air
IF 1.7 4区 化学
Russian Chemical Bulletin Pub Date : 2025-03-27 DOI: 10.1007/s11172-025-4544-3
S. M. Yunusov, E. S. Kalyuzhnaya, V. V. Morozov
{"title":"Supported mononuclear carbonyl ruthenate as a catalyst for gas-phase ammonia synthesis. Effect of short-term exposure of the catalyst to air","authors":"S. M. Yunusov,&nbsp;E. S. Kalyuzhnaya,&nbsp;V. V. Morozov","doi":"10.1007/s11172-025-4544-3","DOIUrl":"10.1007/s11172-025-4544-3","url":null,"abstract":"<div><p>The catalyst for ammonia synthesis from dinitrogen and dihydrogen based on mononuclear potassium carbonyl ruthenate K<sub>2</sub>[Ru(CO)<sub>4</sub>] (precursor of catalytically active species) deposited on graphite-like carbon Sibunit exhibits an interesting feature when promoted with metallic potassium and Bu<sup>n</sup>Li. Namely, the activity of the catalyst based on K<sub>2</sub>[Ru(CO)<sub>4</sub>]/Sibunit noticeably increases after thermal removal of CO ligands followed by short-term exposure to air compared to the activity of the standard K<sub>2</sub>[Ru(CO)<sub>4</sub>]/Sibunit sample not exposed to air. Unlike the latter, the air-exposed catalyst simultaneously promoted with both metallic potassium and Bu<sup>n</sup>Li becomes much more efficient than the air-exposed catalyst promoted with metallic potassium only.</p></div>","PeriodicalId":756,"journal":{"name":"Russian Chemical Bulletin","volume":"74 2","pages":"521 - 525"},"PeriodicalIF":1.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716800","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信