{"title":"Synthesis of New Indole-Containing Benzo[f]coumarin Derivatives and Their Effect on the Proliferation and Redox State of Rat C6 Glioma Cells","authors":"T. A. Kulahava, V. A. Shumski, I. V. Mineyeva","doi":"10.1134/S1070428024060034","DOIUrl":"10.1134/S1070428024060034","url":null,"abstract":"<p>Modification of 2-acetyl-3<i>H</i>-benzo[<i>f</i>]chromen-3-one and 2-[(2<i>E</i>)-3-phenylprop-2-enoyl]-3<i>H</i>-benzo[<i>f</i>]chromen-3-one has been performed for the first time via the reaction with indole. The resulting benzo[<i>f</i>]coumarins have been found to exhibit antioxidant properties in model systems: they react with hydrogen peroxide and sodium hypochlorite and regulate redox state of rat C6 glioma cells, which is reflected in reduced concentration of intracellular hydrogen peroxide and increased level of reduced glutathione. The synthesized compounds in the presence of exogenous hydrogen peroxide exert a protective effect on the cells, acting as antioxidants and restoring the redox balance. 2-[3-(1<i>H</i>-Indol-3-yl)-3-phenylpropanoyl]-3<i>H</i>-benzo[<i>f</i>]khromen-3-one at a micromolar concentrations inhibited the rat C6 glioma cell proliferation by 25–35%.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"995 - 1005"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222310","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}
{"title":"Nucleophilic Functionalization of Tropylium Salts with Heterocyclic Amines and Carboxylic Acid Amides and Hydrazides","authors":"L. P. Yunnikova, O. V. Pshenitsyna","doi":"10.1134/S1070428024060010","DOIUrl":"10.1134/S1070428024060010","url":null,"abstract":"<p>The review summarizes literature data on new nucleophilic functionalization reactions of tropylium salts with heterocyclic amines and monocarboxylic acid amides and hydrazides over the past decade.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"971 - 983"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227505","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}
V. R. Sinyakov, T. V. Mezhenkova, V. M. Karpov, Ya. V. Zonov
{"title":"Defluorination and Other Transformations of Perfluorinated Tetralin, Alkyltetralins and 4-Methyl-1,2-dihydronaphthalene in the System Zn–DMF. Synthesis of Perfluoro-1-ethyl- and -1-methylnaphthalenes","authors":"V. R. Sinyakov, T. V. Mezhenkova, V. M. Karpov, Ya. V. Zonov","doi":"10.1134/S1070428024060058","DOIUrl":"10.1134/S1070428024060058","url":null,"abstract":"<p>The reaction of perfluorotetralin with zinc in DMF, followed by treatment with water, gave 1,1,2,2,3,3,4,4,5,6,8-undecafluorotetralin, perfluoro-2,2′-binaphthalene, and octafluoronaphthalene. Under similar conditions, perfluoro-1-ethyltetralin was converted into a mixture of 1,2,3,4,6,7-hexafluoro-5-(perfluoroethyl)naphthalene and perfluorinated 1-ethyl- and 1-vinylnaphthalenes, perfluoro-6-methyltetralin gave rise to 1,2,4,5,6,8-hexafluoro-3-(trifluoromethyl)naphthalene and perfluoro-2-methylnaphthalene, and perfluoro-1-methylnaphthalene was obtained from perfluoro-4-methyl-1,2-dihydronaphthalene. Perfluoro-1-ethyltetralin reacted with bromine-activated zinc in DMF to produce a mixture containing (perfluoro-4-ethylnaphthalen-1-yl)zinc bromide which was converted to 1,2,3,4,6,7-hexafluoro-5-(perfluoroethyl)naphthalene by the action of water, while its reaction with CuCl<sub>2</sub> afforded perfluoro-4,4′-diethyl-1,1′-binaphthalene.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"1013 - 1021"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227508","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}
{"title":"Quaternization of Ethyl Pyridin-2-ylcarbamate with Phenacyl Bromides","authors":"D. A. Lomov","doi":"10.1134/S1070428024060204","DOIUrl":"10.1134/S1070428024060204","url":null,"abstract":"<p>The reaction of ethyl pyridine-2-ylcarbamate with phenacyl bromides in acetonitrile gave 2-aryl-1-(ethoxycarbonyl)-2-hydroxy-2-phenyl-2,3-dihydro-1<i>H</i>-imidazo[1,2-<i>a</i>]pyridine-4-ium bromides which were converted into 2-arylimidazo[1,2-<i>a</i>]pyridines by heating in acetic anhydride, followed by treatment with potassium carbonate.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"1145 - 1148"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227510","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}
{"title":"Ruthenium-Catalyzed Regioselective C7–H Arylation of 2-(Het)aryl[1,2,4]triazolo[1,5-a]pyrimidines with Aryl Halides","authors":"K. E. Shepelenko, I. G. Gnatiuk, V. M. Chernyshev","doi":"10.1134/S1070428024060095","DOIUrl":"10.1134/S1070428024060095","url":null,"abstract":"<p>Unusual direction of the C–H arylation of 2-(het)aryl[1,2,4]triazolo[1,5-<i>a</i>]pyrimidines with (het)aryl halides under catalysis by ruthenium(II) complexes has been revealed. The reaction involved activation of the C<sup>7</sup>–H bond rather than the C<sup>α</sup>–H bond of the (het)aryl substituent at C<sup>2</sup> of the triazolopyrimidine core. The arylation of 2-substituted [1,2,4]triazolo[1,5-<i>a</i>]pyrimidines with (het)aryl bromides afforded a series of 7-(het)aryl derivatives in good yields.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"1042 - 1050"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222313","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}
{"title":"Ultrasound-Assisted Synthesis and DFT Studies of Novel Schiff Bases Derived from 3-Methyl-1,3-benzothiazol-2(3H)-one in an Ionic Liquid Medium","authors":"Y. Bouchebcheb, D. Fedaoui, A. Alem, M. Liacha","doi":"10.1134/S1070428024060150","DOIUrl":"10.1134/S1070428024060150","url":null,"abstract":"<p>A new series of Schiff bases have been prepared by the condensation between 3-methyl-2-oxo-2,3-dihydro-1,3-benzothiazole-6-carbaldehyde and primary aromatic amines using an eco-friendly method that employs the ionic liquid triethylammonium acetate [TEAA] as a solvent and catalyst at 80°C under ultrasonic irradiation. This protocol has a number of benefits, including short reaction times, direct isolation of the pure product, and high yield. The structures of the newly synthesized derivatives were established on the basis of IR, <sup>1</sup>H NMR, and <sup>13</sup>C NMR spectroscopic techniques (including two-dimensional <sup>1</sup>H–<sup>13</sup>C HSQC and <sup>1</sup>H–<sup>13</sup>C HMBC experiments) and elemental analysis. A DFT theoretical study was carried out for the synthesized molecules in the gas phase using the B3LYP method with 6-311G(<i>d</i>,<i>p</i>) basis set; the HUMO and LUMO energies were calculated for the optimized geometries, which showed that compound <b>4e</b> is the most stable with an energy gap of 4.05585 eV, as presented by the DOS spectrum. The reactivity of the compounds was studied by calculating some global reactivity descriptors, revealing that compound <b>4b</b> is the most chemically reactive. In addition, molecular electrostatic potentials (MEP) was studied for the reaction centers of the synthesized compounds.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"1107 - 1116"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222332","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}
{"title":"Expanding the Scope of Metal-Free Catalytic Approach for the Green One-Pot Multicomponent Synthesis of β-Amido Carbonyl Scaffolds","authors":"K. Ramya, Seena Chakko, V. S. Shinu, S. Arun","doi":"10.1134/S1070428024060174","DOIUrl":"10.1134/S1070428024060174","url":null,"abstract":"<p>An efficient, mild, and green one-pot multicomponent synthetic approach has been proposed for the synthesis of β-amido carbonyl scaffolds via coupling of aromatic aldehydes, enolizable ketones, and acetonitrile in the presence of acetyl chloride and ammonium chloride as a metal-free highly effective catalyst. The developed approach provides a novel cost-effective and environmentally friendly route to access highly functionalized structural scaffolds in in good to excellent yields and requires less operational skill and conditions.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"1123 - 1128"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222335","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}
T. V. Sokolnikova, A. G. Proidakov, M. V. Penzik, V. N. Kizhnyaev
{"title":"Synthesis of Bi- and Polycyclic Pyrimidine Derivatives","authors":"T. V. Sokolnikova, A. G. Proidakov, M. V. Penzik, V. N. Kizhnyaev","doi":"10.1134/S1070428024060046","DOIUrl":"10.1134/S1070428024060046","url":null,"abstract":"<p>Various bi- and polycyclic pyrimidine derivatives (including fused ones) containing different aza- and carbocyclic fragments have been synthesized via a modified Biginelli reaction.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"1006 - 1012"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222309","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}
{"title":"Intramolecular Heterocyclization of Quinolyl-Substituted Carbothioamides to Functionalized 2,4-Dihydro-3H-1,2,4-triazoles and -1,3,4-thiadiazoles","authors":"I. L. Aleksanyan, L. P. Hambardzumyan","doi":"10.1134/S107042802406006X","DOIUrl":"10.1134/S107042802406006X","url":null,"abstract":"<p>A simple and economical approach has been proposed for the transformation of 2-(quinolylpropanoyl)-<i>N</i>-phenylhydrazine-1-carbothioamide into 4-methyl-3-[2-(4-phenyl-5-sulfanylidene-4,5-dihydro-1<i>H</i>-1,2,4-triazol-3-yl)ethyl]quinolin-2(1<i>H</i>)-ones and 3-[2-(5-anilino-1,3,4-thiadiazol-2-yl)ethyl] 4-methylquinolin-2(1<i>H</i>)-ones by heterocyclization in the presence of aqueous sodium hydroxide and concentrated sulfuric acid, respectively. The reactions are economically efficient, and the target products are formed in high yields (85–98%) under mild conditions without using expensive catalysts and column chromatography for their isolation.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"1022 - 1027"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222311","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. M. Potdar, S. S. Gurav, S. V. Raskar, K. T. Waghmode
{"title":"Hantzsch Synthesis of the Calcium Channel Blockers Nifedipine, Diludine, and Nitrendipine Using Methanesulfonic Acid as Catalyst","authors":"S. M. Potdar, S. S. Gurav, S. V. Raskar, K. T. Waghmode","doi":"10.1134/S1070428024060162","DOIUrl":"10.1134/S1070428024060162","url":null,"abstract":"<p>A simple and efficient one-pot three-component method has been developed and applied for the preparation of the calcium channel blockers nifedipine, diludine, and nitrendipine via Hantzsch dihydropyridine synthesis in good yields employing methanesulfonic acid as catalyst. The protocol stands out for mild reaction conditions, shorter reaction time, high yield, and easy workup and purification procedures, which enhance its practicality. Furthermore, the use of inexpensive and greener catalyst contributes to the efficacy and feasibility of the presented synthetic approach.</p>","PeriodicalId":766,"journal":{"name":"Russian Journal of Organic Chemistry","volume":"60 6","pages":"1117 - 1122"},"PeriodicalIF":0.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222338","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}