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Combined Production of Hydrogen and Methanol without CO2 Emission Based on Matrix Conversion of Natural Gas 基于天然气基质转换的无二氧化碳排放的氢气和甲醇联合生产技术
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-31 DOI: 10.1134/s0012500823601018
V. S. Arutyunov, A. V. Nikitin, V. I. Savchenko, I. V. Sedov
{"title":"Combined Production of Hydrogen and Methanol without CO2 Emission Based on Matrix Conversion of Natural Gas","authors":"V. S. Arutyunov, A. V. Nikitin, V. I. Savchenko, I. V. Sedov","doi":"10.1134/s0012500823601018","DOIUrl":"https://doi.org/10.1134/s0012500823601018","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Reducing carbon dioxide emissions during production is one of the main trends in modern oil and gas chemistry. One of the most realistic possibilities for achieving this is to involve carbon dioxide generated in technological processes as a feedstock for producing gas chemical products. The maximum effect can be achieved in the production of large-scale chemicals, such as syngas, hydrogen, and methanol. We consider such possibilities and present a new combined autothermal process for the joint production of hydrogen and methanol based on non-catalytic matrix conversion of natural gas into syngas, which allows one to almost avoid CO<sub>2</sub> emissions.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645053","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 a Polyfunctional Dendron Based on Gallic Acid Using the Azide–Alkyne Cycloaddition Reaction 利用叠氮-炔烃环加成反应合成基于没食子酸的多官能团树枝状化合物
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-31 DOI: 10.1134/s001250082360102x
A. M. Fatykhova, V. A. Burilov, S. E. Solovieva, I. S. Antipin
{"title":"Synthesis of a Polyfunctional Dendron Based on Gallic Acid Using the Azide–Alkyne Cycloaddition Reaction","authors":"A. M. Fatykhova, V. A. Burilov, S. E. Solovieva, I. S. Antipin","doi":"10.1134/s001250082360102x","DOIUrl":"https://doi.org/10.1134/s001250082360102x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A first-generation triazole-containing dendron with hydroxypropyltriazole groups and a tetraethylene glycol linker was synthesized for the first time by stepwise modification of gallic acid by the azide–alkyne cycloaddition reaction. The structures of all intermediate compounds have been proven by advanced physical methods. It has been found that, due to the high mobility of the bromine atom in the benzylic position, the use of bromomethylene gallic acid derivatives in the synthesis of triazole-containing dendrons gives by-products resulting from alkylation of the bases used in the reaction (triethylamine and diisopropylethylamine).</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645038","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
Efficient Synthesis of Optically Pure Mono- and Binuclear Macrocyclic Polylactones from Castor Oil and Sebacic Acid 利用蓖麻油和癸二酸高效合成光学纯度较高的单核和双核大环多内酯
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-31 DOI: 10.1134/s0012500823601031
{"title":"Efficient Synthesis of Optically Pure Mono- and Binuclear Macrocyclic Polylactones from Castor Oil and Sebacic Acid","authors":"","doi":"10.1134/s0012500823601031","DOIUrl":"https://doi.org/10.1134/s0012500823601031","url":null,"abstract":"<span> <h3>Abstract</h3> <p>An efficient synthesis of optically pure macrocyclic mono- and binuclear polylactones has been proposed. The synthesis is based on the condensation of natural triol, castor oil, with sebacoyl dichloride in 1 : 1 or 1 : 2 ratios in boiling carbon tetrachloride in the presence of triethylamine and <em>N</em>,<em>N</em>-dimethylaminopyridine as a catalyst.</p> </span>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645335","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
Study of the Antitumor Activity in Vitro of Iodo-δ-Lactones of 5Z,9Z-Dienoic Acid 5Z,9Z-Dienoic Acid 的碘δ-内酯体外抗肿瘤活性研究
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-31 DOI: 10.1134/s0012500823700209
E. Kh. Makarova, I. V. Ishbulatov, A. A. Makarov, L. U. Dzhemileva, U. M. Dzhemilev, V. A. D’yakonov
{"title":"Study of the Antitumor Activity in Vitro of Iodo-δ-Lactones of 5Z,9Z-Dienoic Acid","authors":"E. Kh. Makarova, I. V. Ishbulatov, A. A. Makarov, L. U. Dzhemileva, U. M. Dzhemilev, V. A. D’yakonov","doi":"10.1134/s0012500823700209","DOIUrl":"https://doi.org/10.1134/s0012500823700209","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Previously unknown phenyl-substituted iodo-δ-lactone derived from 11‑phenylundeca-5<i>Z</i>,9<i>Z</i>-dienoic acid was synthesized in 94% yield using the Ti-catalyzed intermolecular cross-cyclomagnesiation of aromatic 1,2-diene with O‑containing allene at the key stage. The in vitro cytotoxic activity of synthesized alkyl- and phenyl-substituted iodo-δ-lactones of 5<i>Z</i>,9<i>Z</i>-dienoic acids against the Jurkat, K562, U937, HL60, and Hek293 cell lines was studied, and their effect on the cell cycle and the ability to induce apoptosis were investigated using flow cytometry.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645175","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 Polyfunctional Cyclic Ketals Based on Substituted 4-Methylene-1,3-dioxolanes 基于取代的 4-亚甲基-1,3-二氧戊环的新型多官能环酮的合成
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-31 DOI: 10.1134/s0012500823601043
Yu. G. Borisova, G. Z. Raskildina, E. R. Belyaeva, A. I. Musin, R. M. Sultanova, S. S. Zlotskii
{"title":"Synthesis of New Polyfunctional Cyclic Ketals Based on Substituted 4-Methylene-1,3-dioxolanes","authors":"Yu. G. Borisova, G. Z. Raskildina, E. R. Belyaeva, A. I. Musin, R. M. Sultanova, S. S. Zlotskii","doi":"10.1134/s0012500823601043","DOIUrl":"https://doi.org/10.1134/s0012500823601043","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Methods have been proposed for the preparation of new polyfunctional heterocyclic compounds based on the addition of dichlorocarbene and ethanol to the terminal double bond of 2,2-disubstituted 4-methylene-1,3-dioxolanes, as well as on hydrogenation and ozonolysis of this bond.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139645236","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
Phase Formation in Alkaline Titanosilicate Systems during Hydrothermal Synthesis 水热合成过程中碱性钛硅酸盐体系中的相形成
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-20 DOI: 10.1134/s0012500823700192
L. G. Gerasimova, E. S. Shchukina, M. V. Maslova, A. I. Nikolaev
{"title":"Phase Formation in Alkaline Titanosilicate Systems during Hydrothermal Synthesis","authors":"L. G. Gerasimova, E. S. Shchukina, M. V. Maslova, A. I. Nikolaev","doi":"10.1134/s0012500823700192","DOIUrl":"https://doi.org/10.1134/s0012500823700192","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The highly alkaline multicomponent systems TiO<sub>2</sub>–H<sub>2</sub>SO<sub>4</sub>–Na<sub>2</sub>SiO<sub>3</sub>–NaOH–H<sub>2</sub>O and TiO<sub>2</sub>–H<sub>2</sub>SO<sub>4</sub>–(NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>–Na<sub>2</sub>SiO<sub>3</sub>–NaOH–H<sub>2</sub>O have been studied under conditions of hydrothermal synthesis, which gives new products with specified technical properties. It has been shown that, by a targeted selection of structure-forming components, in particular, titanium compounds, together with optimal parameters of hydrothermal treatment of the formed precursor, one can obtain compounds with given chemical composition and particle size and morphology. It has been found that the rate of structural transformations in the synthesis depends on the phase composition of titanosilicate precursors. Their hydrothermal treatment involves the alkaline and thermal hydrolysis followed by dehydration of the hydrolyzed phases of titanium(IV) and silicon. This is accompanied by the localization of free bonds ensuring the formation of Ti–O–Si–O bridges and their subsequent transformation into new structured species.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139515989","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 Antiviral Activity of Copolymers of Hydroxycinnamic Acid with N-Vinylamides 羟基肉桂酸与 N-乙烯基酰胺共聚物的合成及抗病毒活性
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-20 DOI: 10.1134/s0012500823600992
N. A. Nesterova, A. A. Shtro, E. F. Panarin
{"title":"Synthesis and Antiviral Activity of Copolymers of Hydroxycinnamic Acid with N-Vinylamides","authors":"N. A. Nesterova, A. A. Shtro, E. F. Panarin","doi":"10.1134/s0012500823600992","DOIUrl":"https://doi.org/10.1134/s0012500823600992","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Radical copolymerization of coumarin with <i>N</i>-vinylamides (<i>N</i>‑vinylpyrrolidone, <i>N</i>-methyl-<i>N</i>-vinylacetamide, <i>N</i>-vinylformamide) has been used to prepare copolymers of various composition with variable molecular weights. Subsequent reactions in their polymer chains affords water-soluble copolymers of salts of hydroxycinnamic acid and its hydrazides. The synthesized copolymers of hydroxycinnamic acid salts and hydrazides with <i>N</i>-vinylamides have low cytotoxicity and demonstrate the pronounced antiviral activity against human respiratory syncytial virus (strain A2).</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139515990","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 Approach to the Synthesis of Fine Powders of Lithium Nickel and Lithium Cobalt Double Phosphates with a Desired Morphology 合成具有所需形态的镍钴锂双磷酸盐细粉的新方法
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-20 DOI: 10.1134/s0012500823600980
N. V. Zharov, M. V. Maslova, A. I. Nikolaev
{"title":"A New Approach to the Synthesis of Fine Powders of Lithium Nickel and Lithium Cobalt Double Phosphates with a Desired Morphology","authors":"N. V. Zharov, M. V. Maslova, A. I. Nikolaev","doi":"10.1134/s0012500823600980","DOIUrl":"https://doi.org/10.1134/s0012500823600980","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The paper presents a new low-temperature method for the synthesis of fine powders of double phosphates LiCoPO<sub>4</sub> and LiNiPO<sub>4</sub> using a low-waste technology. It has been shown that the morphology and particle size distribution of the synthesized materials are determined by the type of precursor used. The resulting compounds are characterized by chemical analysis, X-ray powder diffraction analysis, scanning electron microscopy, cyclic voltammetry, and cyclic chronopotentiometry. The new approach to the synthesis of submicron powders of lithium and transition metal (nickel or cobalt) double phosphates is more efficient than the existing conventional methods.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516116","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 Quantitative Method of Express Analysis of Natural Rubber Directly in the Root of the Rubber Plant by the Spin Probe EPR Method 利用自旋探针 EPR 法直接对橡胶树根部的天然橡胶进行快速定量分析的新方法
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-20 DOI: 10.1134/s0012500823600955
{"title":"A New Quantitative Method of Express Analysis of Natural Rubber Directly in the Root of the Rubber Plant by the Spin Probe EPR Method","authors":"","doi":"10.1134/s0012500823600955","DOIUrl":"https://doi.org/10.1134/s0012500823600955","url":null,"abstract":"<span> <h3>Abstract</h3> <p>The phenomenon of selective sorption of a stable nitroxyl radical TEMPO on rubber particles in the powder of dried and dispersed root of kok-saghyz has been discovered. This feature of the rubber-bearing root material has contributed to the development of a new, highly sensitive method of quantitative analysis of rubber by measuring the integrated intensity of the EPR TEMPO signal. The main advantages of the proposed method are the speed and the ability to determine the content of rubber directly in the roots of the plant in microquantities (5–30 mg).</p> </span>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516285","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
Stearin as a Starting Material for the Synthesis of Biologically Active Ionic Liquids 硬脂作为合成生物活性离子液体的起始材料
IF 0.8 4区 化学
Doklady Chemistry Pub Date : 2024-01-20 DOI: 10.1134/s0012500823600967
M. M. Seitkalieva, A. V. Vavina, E. N. Strukova
{"title":"Stearin as a Starting Material for the Synthesis of Biologically Active Ionic Liquids","authors":"M. M. Seitkalieva, A. V. Vavina, E. N. Strukova","doi":"10.1134/s0012500823600967","DOIUrl":"https://doi.org/10.1134/s0012500823600967","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The possibility of using widely available stearin to produce fatty acid-derived ionic liquids (ILs) has been shown for the first time. New amphiphilic ILs based on imidazolium, pyridinium, and quaternary ammonium cations containing long-chain alkyl substituents have been prepared. The synthesized compounds have been shown to have biological activity comparable to known antimicrobial compounds. ILs with one alkyl substituent have higher cytotoxicity and antimicrobial activity compared to disubstituted derivatives.</p>","PeriodicalId":530,"journal":{"name":"Doklady Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139518685","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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