V. A. Kuimov, R. I. Fattakhov, N. I. Tikhonov, N. A. Belogorlova
{"title":"Single-Electron Transfer in the Reaction of Red Phosphorus with 4-(Phenylsulfanyl)benzophenones in Superbase Systems MOH/DMSO","authors":"V. A. Kuimov, R. I. Fattakhov, N. I. Tikhonov, N. A. Belogorlova","doi":"10.1134/S1070428025602705","DOIUrl":"10.1134/S1070428025602705","url":null,"abstract":"<p>Red phosphorus reacted with 4-(phenylsulfanyl)- and bis(4-phenylsulfanyl)benzophenones in superbase suspensions MOH/DMSO (M = Na, K) on heating at (85°C, 1.5–4 h, argon atmosphere) according to the single-electron transfer mechanism. The formation of potassium bis{phenyl[4-(phenylsulfanyl)phenyl]methyl} phosphate radical anion was detected by ESR spectroscopy. Reduction products of the initial (phenylsulfanyl)benzophenones (diarylmethanols and diarylmethanes functionalized with phenylsulfanyl groups) and diphenyl disulfide were isolated from the reaction mixtures, while potassium bis{phenyl[4-(phenylsulfanyl)phenyl]methyl} and bis{di[4-(phenylsulfanyl)phenyl]methyl} phosphates were detected among the products and identified by NMR spectroscopy).</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1216 - 1223"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868924","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}
A. A. Larin, A. V. Shaferov, I. V. Ananyev, L. L. Fershtat
{"title":"Synthesis of (1,2,4-Triazinyl)furazans","authors":"A. A. Larin, A. V. Shaferov, I. V. Ananyev, L. L. Fershtat","doi":"10.1134/S1070428025602298","DOIUrl":"10.1134/S1070428025602298","url":null,"abstract":"<p>4-Methyl- and 4-amino-1,2,5-oxadiazole-3-carbohydrazonamides reacted with glyoxal to give the corresponding dimeric products, <i>N</i>′,<i>N</i>″-(ethane-1,2-diylidene)bis(4-R-1,2,5-oxadiazole-3-carbohydrazonamides) (R = Me, NH<sub>2</sub>), whereas the reaction of the same substrates with other 1,2-dicarbonyl compounds, such as benzil and ninhydrin afforded target 3-(4-R-1,2,5-oxadiazol-3-yl)-1,2,4-triazine derivatives. The product structure was confirmed by IR and NMR spectra and X-ray analysis. The synthesized compounds are promising as scaffolds for the design of pharmacologically active compounds with different kinds of activity.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1311 - 1318"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868947","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}
R. F. Fatykhov, I. A. Khalymbadzha, A. P. Potapova, V. V. Melekhin, A.V. Paramonova, D. S. Kopchuk, P. A. Slepukhin, V. G. Kartsev, O. N. Chupakhin
{"title":"Reaction of 5,7-Dihydroxycoumarins with Pyrimidines","authors":"R. F. Fatykhov, I. A. Khalymbadzha, A. P. Potapova, V. V. Melekhin, A.V. Paramonova, D. S. Kopchuk, P. A. Slepukhin, V. G. Kartsev, O. N. Chupakhin","doi":"10.1134/S1070428025602134","DOIUrl":"10.1134/S1070428025602134","url":null,"abstract":"<p>The study of 5,7-dihydroxycoumarins as nucleophilic agents in the S<sub>N</sub><sup>H</sup> reaction with pyrimidines showed that the reaction does not stop at the stage of formation of σ<sup>H</sup>-adduct as intermediate in the S<sub>N</sub><sup>H</sup> mechanism but proceeds further with annulation of the 1,3,5-oxadiazocine ring in moderate to excellent yields. The structures of the obtained compounds were confirmed by NMR spectroscopy and X-ray diffraction. A primary in vitro assessment of their antitumor activity was performed.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1296 - 1303"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868590","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}
G. M. Gindullina, G. F. Sakhautdinova, I. M. Sakhautdinov
{"title":"Regioselective Synthesis of Furfuryl-Substituted 1,2,3-Triazoles by 1,3-Dipolar Cycloaddition of 5-(Azidomethyl)furfural to Methyl Alka-2,3-dienoates","authors":"G. M. Gindullina, G. F. Sakhautdinova, I. M. Sakhautdinov","doi":"10.1134/S1070428025603292","DOIUrl":"10.1134/S1070428025603292","url":null,"abstract":"<p>A procedure has been proposed for the regioselective synthesis of new 1,2,3-triazole derivatives from methyl alka-2,3-dienoates. The effect of substituents in the initial reactants on the regio- and stereoselectivity of the reaction has been studied, and the synthesized compounds have been characterized by physicochemical methods. Regioselective 1,3-dipolar cycloaddition of 5-(azidomethyl)furfural [prepared from 5-(chloromethyl)furfural] to alka-2,3-dienoates containing a cyclic imide fragment in toluene afforded substituted 1,2,3-triazoles with maximum remoteness of the furfuryl and ester groups from each other, which minimizes steric repulsion.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1369 - 1373"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869032","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}
E. Yu. Schmidt, N. A. Lobanova, I. V. Tatarinova, I. A. Ushakov, B. A. Trofimov
{"title":"Self-Assembly of Pyrrole-Centered Pentaheterocyclic Ensembles in the System Hetarenecarbonitrile/Ethynylhetarene/t-BuOK/DMSO","authors":"E. Yu. Schmidt, N. A. Lobanova, I. V. Tatarinova, I. A. Ushakov, B. A. Trofimov","doi":"10.1134/S1070428025602663","DOIUrl":"10.1134/S1070428025602663","url":null,"abstract":"<p>Pyrrole-centered pentaheterocyclic ensembles, tetrasubstituted 1<i>H</i>-pyrroles with fundamental heterocycles (pyrrole, furan, thiophene, pyridine) in various combinations, have been synthesized in up to 60% by the reaction of hetarenecarbonitriles with ethynylhetarenes in the system <i>t</i>-BuOK/DMSO (room temperature, 1 h). The reaction involves cascade self-assembly of three ethynylhetarene molecules and one hetarenecarbonitrile molecule, which is triggered and driven by acetylide anions.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1279 - 1285"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868926","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}
S. A. Torosyan, Z. F. Nuriakhmetova, F. A. Gimalova, M. S. Miftakhov
{"title":"New Methylene-Bridged Blocks Based on Thieno[3,2-b]pyrrole and Indole","authors":"S. A. Torosyan, Z. F. Nuriakhmetova, F. A. Gimalova, M. S. Miftakhov","doi":"10.1134/S1070428025602626","DOIUrl":"10.1134/S1070428025602626","url":null,"abstract":"<p>The condensation of (4-benzylthieno[3,2-<i>b</i>]pyrrol-5-yl)methanols with indole in methylene chloride in the presence of Amberlyst 15 afforded new 2-[(4-benzyl-4<i>H</i>-thieno[3,2-<i>b</i>]pyrrol-5-yl)methyl]-1<i>H</i>-indoles.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1374 - 1378"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868945","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}
A. Rammohan, G. A. Kim, A. P. Krinochkin, Ya. K. Shtaitz, S. E. Vatolina, A. V. Baklykov, T. A. Tseitler, D. S. Kopchuk, G. V. Zyryanov
{"title":"New (2,2′-Bi)pyridines with Higher Amine Substituents. Synthesis and Properties","authors":"A. Rammohan, G. A. Kim, A. P. Krinochkin, Ya. K. Shtaitz, S. E. Vatolina, A. V. Baklykov, T. A. Tseitler, D. S. Kopchuk, G. V. Zyryanov","doi":"10.1134/S1070428025602067","DOIUrl":"10.1134/S1070428025602067","url":null,"abstract":"<p>An efficient synthetic approach to (2,2′-bi)pyridines containing higher alkylamino groups at the α-positions has been proposed on the basis of their 1,2,4-triazine precursors. The synthetic sequence included solvent-free reactions. The synthesized compounds in acetonitrile solution showed photoluminescence with an absolute quantum yield of up to 83.2 %.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1286 - 1291"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868925","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}
G. S. Martyanov, M. A. Barabanov, A. R. Gindullin, P. A. Slepukhin, A. V. Pestov
{"title":"New Synthesis of N-Monosubstituted Propane-1,3-diamines","authors":"G. S. Martyanov, M. A. Barabanov, A. R. Gindullin, P. A. Slepukhin, A. V. Pestov","doi":"10.1134/S1070428025602717","DOIUrl":"10.1134/S1070428025602717","url":null,"abstract":"<p>A new method has been proposed for the synthesis of N-monosubstituted 1,3-diamines through the protection of propane-1,3-diamine with phthalic anhydride in one step to produce 3,4-dihydropyrimido[2,1-<i>a</i>]isoindol-6(2<i>H</i>)-one which is selectively alkylated at the imine nitrogen atom, followed by hydrolytic removal of the phthalyl protecting group. The target N-monosubstituted propane-1,3-diamines are thus obtained in up to 66% yield without formation of polyalkyl derivatives. A number of new compounds have been characterized; in particular, 1-methyl-6-oxo-2,3,4,6-tetrahydropyrimido[2,1-<i>a</i>]izoindol-1-ium iodide and its partial hydrolysis product, 3-(1,3-dioxo-1,3-dihydro-2<i>H</i>-isoindol-2-yl)-<i>N</i>-methylpropan-1-aminium iodide, have been studied by X-ray analysis.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1224 - 1235"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868720","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}
L. V. Saloutina, M. I. Kodess, I. N. Ganebnykh, V. I. Saloutin, O. N. Chupakhin
{"title":"Synthesis of Trifluoromethyl-Substituted Imidazolidine-2-thiones and Their Reactions with Urea, 2-Aminoethanol, and 2-Aminophenol","authors":"L. V. Saloutina, M. I. Kodess, I. N. Ganebnykh, V. I. Saloutin, O. N. Chupakhin","doi":"10.1134/S1070428025602699","DOIUrl":"10.1134/S1070428025602699","url":null,"abstract":"<p>Perfluorobiacetyl reacted with thiourea, <i>N</i>-methylthiourea, and <i>N</i>-phenylthiourea in acetonitrile to give 92–95% of <i>cis</i>/<i>trans</i>-isomeric 4,5-dihydroxy-4,5-bis(trifluoromethyl)imidazolidine-2-thione and 1-methyl(phenyl)-4,5-dihydroxy-4,5-bis(trifluoromethyl)imidazolidine-2-thiones. The reaction of 4,5-dihydroxy-4,5-bis(trifluoromethyl)imidazolidine-2-thione with 2-aminoethanol produced sulfanylideneimidazothiazolone, whereas the expected imidazooxazinethione was formed as a minor product. An unusual pathway was observed in the reaction of <i>N</i>-methylimidazolidine-2-thione with 2-aminoethanol, which afforded thiohydantoins, 5-[(2-hydroxyethyl)amino]-3-methyl-2-sulfanylidene-5-(trifluoromethyl)imidazolidin-4-one and 5-hydroxy-3-methyl-2-sulfanylidene-5-(trifluoromethyl)imidazolidin-4-one. <i>N</i>-Methylsulfanylideneimidazooxazolone and <i>N</i>-methyl(trifluoromethyl)thiohydantoin were formed instead of the expected thioglycoluril derivative in the reaction of <i>N</i>-methylimidazolidine-2-thione with urea. Heating of 4,5-dihydroxy-1-phenyl-4,5-bis(trifluoromethyl)imidazolidine-2-thione with urea, 2-aminoethanol, or 2-aminophenol in <i>N</i>,<i>N</i>-dimethylacetamide led to the formation of intramolecular rearrangement product, <i>N</i>-phenyl-bis(trifluoromethyl)thiohydantoin.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1242 - 1253"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868719","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}
G. R. Sunagatullina, G. A. Shavaleeva, Z. R. Valiullina, M. S. Miftakhov
{"title":"New Chiral Bicyclic Pyrrolidine Block for Nirmatrelvir and Its Analogues","authors":"G. R. Sunagatullina, G. A. Shavaleeva, Z. R. Valiullina, M. S. Miftakhov","doi":"10.1134/S1070428025602833","DOIUrl":"10.1134/S1070428025602833","url":null,"abstract":"<p>(1<i>R</i>,5<i>S</i>)-2-Ethoxy-6,6-dimethyl-3-azabicyclo[3.1.0]hex-2-ene easily available from (+)-3-carene has been proposed as a key building block for the synthesis of Nirmatrelvir and related compounds. It has been obtained by enol ethylation of (1<i>R</i>,5<i>S</i>)-6,6-dimethyl-3-azabicyclo[3.1.0]hexan-2-one with triethyloxonium tetrafluoroborate.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"61 7","pages":"1379 - 1383"},"PeriodicalIF":0.9,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868946","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}