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Annulation of 1-methylisoquinoline with pyrrolylacetylenic ketones: catalyst-free stereoselective synthesis of (E)-acylethenylpyrrolo[1’,2’:3,4]imidazo[2,1-a]isoquinolines 1-甲基异喹啉与吡咯乙炔基酮的环化反应：无催化剂立体选择性合成(E)-乙酰乙烯基吡咯并[1',2':3,4]咪唑并[2,1-a]异喹啉类化合物
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.021
Kseniya V. Belyaeva, Lina P. Nikitina, Ivan V. Saliy, Veronika S. Saliy, Andrei V. Afonin, Ludmila A. Oparina, Boris A. Trofimov
{"title":"Annulation of 1-methylisoquinoline with pyrrolylacetylenic ketones: catalyst-free stereoselective synthesis of (E)-acylethenylpyrrolo[1’,2’:3,4]imidazo[2,1-a]isoquinolines","authors":"Kseniya V. Belyaeva,&nbsp;Lina P. Nikitina,&nbsp;Ivan V. Saliy,&nbsp;Veronika S. Saliy,&nbsp;Andrei V. Afonin,&nbsp;Ludmila A. Oparina,&nbsp;Boris A. Trofimov","doi":"10.1016/j.mencom.2024.09.021","DOIUrl":"10.1016/j.mencom.2024.09.021","url":null,"abstract":"<div><div>1-Methylisoquinoline undergoes stereoselective annulation with pyrrolylacetylenic ketones (MeCN, 80–82 °C) to provide (<em>E</em>)-acylethenylpyrrolo[1<em>’</em>,2<em>’</em>:3,4]imidazo[2,1-<em>a</em>]isoquinolines in up to 92% yield. In the case of 5-arylpyrrolylacetylenic ketones, instead of the above cyclization, the dimerization of the starting ketones to give dipyrrolopyrazines in 38 and 39% yields occurs.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 691-693"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433584","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
The impact of the porous structure on the efficiency of PdIn methanol synthesis catalysts 多孔结构对 PdIn 甲醇合成催化剂效率的影响
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.028
Alexander V. Rassolov , Galina N. Baeva , Dmitry P. Melnikov , Artem R. Kolyadenkov , Anastasia E. Vaulina , Alexander Yu. Stakheev
{"title":"The impact of the porous structure on the efficiency of PdIn methanol synthesis catalysts","authors":"Alexander V. Rassolov ,&nbsp;Galina N. Baeva ,&nbsp;Dmitry P. Melnikov ,&nbsp;Artem R. Kolyadenkov ,&nbsp;Anastasia E. Vaulina ,&nbsp;Alexander Yu. Stakheev","doi":"10.1016/j.mencom.2024.09.028","DOIUrl":"10.1016/j.mencom.2024.09.028","url":null,"abstract":"<div><div>The characteristics of the porous structure and the specific surface area of the support have a significant impact on both the structure of the active sites and the efficiency of catalysts for the synthesis of methanol from CO<sub>2</sub>. The use of a complex of physicochemical methods of analysis in combination with the results of catalytic experiments has enabled the main tendencies in the development of productive and selective catalysts based on PdIn intermetallic nanoparticles to be established.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 711-714"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433691","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
Luminescent properties and thermal stability of (Lu0.98Eu0.02)2bdc3·10H2O metal–organic frameworks (Lu0.98Eu0.02)2bdc3-10H2O金属有机框架的发光特性和热稳定性
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.003
Yulia N. Toikka , Alexander R. Badikov , Nikita A. Bogachev , Ilya E. Kolesnikov , Mikhail Yu. Skripkin , Sergey N. Orlov , Andrey S. Mereshchenko
{"title":"Luminescent properties and thermal stability of (Lu0.98Eu0.02)2bdc3·10H2O metal–organic frameworks","authors":"Yulia N. Toikka ,&nbsp;Alexander R. Badikov ,&nbsp;Nikita A. Bogachev ,&nbsp;Ilya E. Kolesnikov ,&nbsp;Mikhail Yu. Skripkin ,&nbsp;Sergey N. Orlov ,&nbsp;Andrey S. Mereshchenko","doi":"10.1016/j.mencom.2024.09.003","DOIUrl":"10.1016/j.mencom.2024.09.003","url":null,"abstract":"<div><div>Two new heterometallic lutetium(III)–europium(III) terephthalate metal–organic frameworks were synthesized. The compounds demonstrated bright red emission of Eu<sup>3+</sup> ions upon UV excitation into the <sup>1</sup>ππ* excited state of terephthalate anion. Photoluminescence properties of the compounds were shown to be determined by the local environment of europium ions.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 634-636"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433525","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
Thermodynamics of the formation of polyynes and aromatic species from methane and acetylene 甲烷和乙炔生成多炔和芳香族物质的热力学
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.044
Emmanuel Busillo , Pavel A. Vlasov , Valery I. Savchenko , Vladimir N. Smirnov , Vladimir S. Arutyunov
{"title":"Thermodynamics of the formation of polyynes and aromatic species from methane and acetylene","authors":"Emmanuel Busillo ,&nbsp;Pavel A. Vlasov ,&nbsp;Valery I. Savchenko ,&nbsp;Vladimir N. Smirnov ,&nbsp;Vladimir S. Arutyunov","doi":"10.1016/j.mencom.2024.09.044","DOIUrl":"10.1016/j.mencom.2024.09.044","url":null,"abstract":"<div><div>The Gibbs free energies of the formation of several polyynes (C<sub>6</sub>H<sub>2</sub>, C<sub>10</sub>H<sub>2</sub> and C<sub>16</sub>H<sub>2</sub>) and aromatic species (C<sub>6</sub>H<sub>6</sub>, C<sub>10</sub>H<sub>8</sub> and C<sub>16</sub>H<sub>10</sub>) from methane and acetylene at temperatures of 1000–2600 K and atmospheric pressure were obtained by quantum chemical calculations using the RI-MP2 method in the ORCA open source software. At lower temperatures, aromatic species form more readily than polyynes, while at temperatures &gt;2200 K the trend reverses and polyyne formation becomes predominant.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 762-765"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433690","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
Dual contrasting ability of NaGd0.7Eu0.3F4 nanocrystals tuned by their hydrophilic coating mode 通过亲水涂层模式调整 NaGd0.7Eu0.3F4 纳米晶体的双重对比能力
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.004
Alexey A. Dovzhenko , Anna A. Betina , Tatyana S. Bulatova , Nikita A. Bogachev , Vladimir G. Nikiforov , Alexandra D. Voloshina , Rustem R. Zairov , Asya R. Mustafina , Andrey S. Mereshchenko , Bulat S. Akhmadeev
{"title":"Dual contrasting ability of NaGd0.7Eu0.3F4 nanocrystals tuned by their hydrophilic coating mode","authors":"Alexey A. Dovzhenko ,&nbsp;Anna A. Betina ,&nbsp;Tatyana S. Bulatova ,&nbsp;Nikita A. Bogachev ,&nbsp;Vladimir G. Nikiforov ,&nbsp;Alexandra D. Voloshina ,&nbsp;Rustem R. Zairov ,&nbsp;Asya R. Mustafina ,&nbsp;Andrey S. Mereshchenko ,&nbsp;Bulat S. Akhmadeev","doi":"10.1016/j.mencom.2024.09.004","DOIUrl":"10.1016/j.mencom.2024.09.004","url":null,"abstract":"<div><div>This work introduces non-covalent hydrophilic coating of NaGd<sub>0.7</sub>Eu<sub>0.3</sub>F<sub>4</sub> nanocrystals by polylysine (PL) and polyethyleneimine (PEI) for MRI and fluorescent imaging purposes. PL- and PEI-stabilized nanocrystals exhibit high colloidal stability, cell internalization, fluorescent contrasting of nuclei and cytoplasm, low cytotoxicity, and relaxivity (<em>r</em><sub>1</sub>= 0.17 dm<sup>3</sup> mmol<sup>–1</sup> s<sup>–1</sup> and <em>r</em><sub>1</sub> = 0.23 dm<sup>3</sup> mmol<sup>–1</sup> s<sup>–1</sup>).</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 637-639"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433572","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
The ‘click’ synthesis of new cytotoxic conjugate based on meso-arylporphyrin and Erlotinib 基于介芳基卟啉和厄洛替尼的新型细胞毒性共轭物的 "点击 "合成
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.019
Yuliya S. Bortnevskaya , Viktoriya A. Malikova , Natalia Yu. Karpechenko , Natal’ya A. Bragina , Kseniya A. Zhdanova
{"title":"The ‘click’ synthesis of new cytotoxic conjugate based on meso-arylporphyrin and Erlotinib","authors":"Yuliya S. Bortnevskaya ,&nbsp;Viktoriya A. Malikova ,&nbsp;Natalia Yu. Karpechenko ,&nbsp;Natal’ya A. Bragina ,&nbsp;Kseniya A. Zhdanova","doi":"10.1016/j.mencom.2024.09.019","DOIUrl":"10.1016/j.mencom.2024.09.019","url":null,"abstract":"<div><div>New phototherapeutic agents based on synthetic porphyrin- type tetrapyrroles and small-molecule-targeted tyrosine kinase inhibitor Erlotinib have been synthesized based on the scheme involving ‘click’ reaction between bis(4- azidophenyl)-containing zinc porphyrinate derivative and <em>N</em>-(3-ethynylphenylamino)-6,7-bis(2-methoxyethoxy)- quinazoline. The final compound and its precursors were tested as potential photosensitizers for targeted photo- dynamic therapy (PDT), the conjugate having shown photoinduced cytotoxicity IC<sub>50</sub> for NKE cells 0.86 ± 0.017 μm and for A431 cells 0.54 ± 0.011 μm.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 685-687"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433582","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 triazole-containing 7-azacoumarin-3-carboxamides: synthesis and biological properties 新的含三唑的 7-氮杂香豆素-3-羧酰胺：合成与生物特性
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.020
Alexey V. Trifonov, Roza K. Bagautdinova, Lyudmila K. Kibardina, Michail A. Pudovik, Anna P. Lyubina, Alexandra D. Voloshina, Almir S. Gazizov, Alexander R. Burilov
{"title":"New triazole-containing 7-azacoumarin-3-carboxamides: synthesis and biological properties","authors":"Alexey V. Trifonov,&nbsp;Roza K. Bagautdinova,&nbsp;Lyudmila K. Kibardina,&nbsp;Michail A. Pudovik,&nbsp;Anna P. Lyubina,&nbsp;Alexandra D. Voloshina,&nbsp;Almir S. Gazizov,&nbsp;Alexander R. Burilov","doi":"10.1016/j.mencom.2024.09.020","DOIUrl":"10.1016/j.mencom.2024.09.020","url":null,"abstract":"<div><div>New azidomethyl-substituted 7-azacoumarin-3-carbox- amides were converted into the corresponding 1,2,3-triazole hybrids by the copper-catalyzed click reaction with phenyl- acetylene. Cytotoxicity and antimicrobial activity were evaluated, and leading compounds were identified.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 688-690"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433583","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
Control for selective sorption of heavy metals cations with anion exchanger AB-17-8 by modifying the surface with citrate groups 通过改变阴离子交换剂 AB-17-8 的表面柠檬酸基团，控制其对重金属阳离子的选择性吸附
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.042
Nazgul S. Murzakasymova , Nesipkhan A. Bektenov , Kiril V. Serebriakov , Egor S. Yelkin , Mikhail A. Gavrilenko
{"title":"Control for selective sorption of heavy metals cations with anion exchanger AB-17-8 by modifying the surface with citrate groups","authors":"Nazgul S. Murzakasymova ,&nbsp;Nesipkhan A. Bektenov ,&nbsp;Kiril V. Serebriakov ,&nbsp;Egor S. Yelkin ,&nbsp;Mikhail A. Gavrilenko","doi":"10.1016/j.mencom.2024.09.042","DOIUrl":"10.1016/j.mencom.2024.09.042","url":null,"abstract":"<div><div>The citric acid modification produces an intermediate layer on the AB-17-8:C<sub>6</sub>H<sub>8</sub>O<sub>7</sub> surface; the layer, on one hand, is firmly secured to the surface owing to the electrostatic coupling between the citrate anion and the positively charged trimethylammonium centers of the anion exchanger surface; on the other hand, it has carbonyl groups with a local negative electron density. The sorption of heavy metals cations occurs through coordination interactions <em>via</em> electrostatic mechanism with local centers of negative electron density, in particular, with the carbonylic oxygen atom.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 755-757"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433689","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
Performance of PdAu/Al2O3 egg-shell catalyst with isolated Pd1 sites for selective hydrogenation of acetylene 具有分离 Pd1 位点的 PdAu/Al2O3 蛋壳催化剂在乙炔选择性加氢中的性能
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.030
Igor S. Mashkovsky , Nadezhda S. Smirnova , Pavel V. Markov , Galina N. Baeva , Anastasia E. Vaulina , Dmitry P. Melnikova , Alexander Yu. Stakheev
{"title":"Performance of PdAu/Al2O3 egg-shell catalyst with isolated Pd1 sites for selective hydrogenation of acetylene","authors":"Igor S. Mashkovsky ,&nbsp;Nadezhda S. Smirnova ,&nbsp;Pavel V. Markov ,&nbsp;Galina N. Baeva ,&nbsp;Anastasia E. Vaulina ,&nbsp;Dmitry P. Melnikova ,&nbsp;Alexander Yu. Stakheev","doi":"10.1016/j.mencom.2024.09.030","DOIUrl":"10.1016/j.mencom.2024.09.030","url":null,"abstract":"<div><div>A herein proposed PdAu/Al<sub>2</sub>O<sub>3</sub> egg-shell catalyst for selective acetylene hydrogenation combines two factors to provide perfect performance: isolation of Pd<sub>1</sub> active sites by Au and an egg-shell distribution of the active phase across the catalyst pellets. The PdAu/Al<sub>2</sub>O<sub>3</sub> catalyst exhibits high acetylene hydrogenation activity at the level of Pd-catalysts and high intrinsic ethylene selectivity of Au-catalysts.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 718-720"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142433693","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
Competition between n → π* interactions and H-bonding: a way to stabilize aminoxyl anions and to improve electron transfer kinetics n → π* 相互作用与 H 键之间的竞争：稳定氨基氧阴离子和改善电子转移动力学的一种方法
IF 1.8 4区 化学
Mendeleev Communications Pub Date : 2024-09-01 DOI: 10.1016/j.mencom.2024.09.016
Oleg A. Levitskiy, Alexey V. Bogdanov, Tatiana V. Magdesieva
{"title":"Competition between n → π* interactions and H-bonding: a way to stabilize aminoxyl anions and to improve electron transfer kinetics","authors":"Oleg A. Levitskiy,&nbsp;Alexey V. Bogdanov,&nbsp;Tatiana V. Magdesieva","doi":"10.1016/j.mencom.2024.09.016","DOIUrl":"10.1016/j.mencom.2024.09.016","url":null,"abstract":"<div><div>A new approach to stabilization of the reduced state of nitroxides in solution is suggested. Thermodynamic stabilization of the strongly basic aminoxyl anions toward protonation and hydrogen bond formation with the solvent was achieved by intramolecular n → π* interactions. A new stable nitroxide radical bearing <em>ortho</em>-acyl group was synthesized to demonstrate this effect by means of cyclic voltammetry.</div></div>","PeriodicalId":18542,"journal":{"name":"Mendeleev Communications","volume":"34 5","pages":"Pages 676-679"},"PeriodicalIF":1.8,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432672","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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