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Relevant bibliographies by topics / 5]furo(2

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Academic literature on the topic '5]furo(2'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "5]furo(2"

1

Sleziak, Róbert, Slávka Balážiová, and Alžbeta Krutošíková. "Reactions of Furo[2,3-b]pyrrole and Furo[3,2-b]pyrrole-Type Aldehydes." Collection of Czechoslovak Chemical Communications 64, no. 7 (1999): 1135–46. http://dx.doi.org/10.1135/cccc19991135.

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The synthesis of methyl 2-formyl-6-(methoxymethyl)furo[2,3-b]pyrrole-5-carboxylate (1d) is described. The reactions of methyl 2-formylfuro[2,3-b]pyrrole-5-carboxylates 1a-1d with malononitrile afforded methyl 2-(2,2-dicyanovinyl)furo[2,3-b]pyrrole-5-carboxylates 3a-3d, with methyl cyanoacetate methyl 2-[2-cyano-2-(methoxycarbonyl)vinyl]furo[2,3-b]pyrrole-5-carboxylates 4a-4d and with 2-furylacetonitrile methyl 2-[2-cyano-2-(2-furyl)vinyl]furo[2,3-b]pyrrole-5-carboxylates 5a-5d. Compounds 1b-1d and methyl azidoacetate gave the appropriate vinylazides 6b-6d, which were used for preparation of su

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2

Zemanová, Ivana, and Renata Gašparová. "SYNTHESIS AND REACTIONS OF NEW DERIVATIVES OF FURO[3,2-b]PYRROLE." Nova Biotechnologica et Chimica 12, no. 2 (2013): 100–107. http://dx.doi.org/10.2478/nbec-2013-0012.

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Abstract Synthesis of methyl 4H-furo[3,2-b]pyrrole-5-carboxylate is taken place in two step synthesis. Vilsmeier-Haack reaction of 4H-furo[3,2-b]pyrrole-5-carboxylate 1 led to methyl 2-formyl-4H-furo[3,2- b]pyrrole-5-carboxylate 4, which served as starting compound for synthesis of furo[3,2-b]pyrrole-2- aldoxime 5 and methyl 2-[(4-oxo-2-thioxo-1,3-thiazolidin-5-ylidene)methyl]-4H-furo[3,2-b]pyrrole-5- carboxylate 7. The hydrazinolysis of 1 was prepared by carbohydrazide 2, which subsequently reacted with aldehydes to form of derivatives 3. Pyrazole derivatives 11 were prepared by the reaction

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3

Janeba, Zlatko, Noha Maklad, and Morris J. Robins. "Synthesis of 6-(alkoxymethyl)- and 6-(alkylsulfanylmethyl)furo[2,3-d]pyrimidin-2(3H)-one analogues." Canadian Journal of Chemistry 84, no. 4 (2006): 561–68. http://dx.doi.org/10.1139/v06-042.

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Treatment of 6-(hydroxymethyl)furo[2,3-d]pyrimidin-2(3H)-one (2) with 1-iodoalkanes and potassium carbonate resulted in predominant formation of N3 (and minor amounts of O2) alkylated regioisomers. Treatment of the 3-alkyl products (3) with thionyl chloride gave highly reactive 6-chloromethyl intermediates (5). Direct solvolysis of 5 in alcohol solutions (~50 °C) produced 3-alkyl-6-(alkoxymethyl)furopyrimidin-2(3H)-ones (6), whereas extensive decomposition of 5 occurred with added base promoters. Sonication of 5 with sodium thioacetate in acetonitrile gave the air-stable 6-(alkylsulfanylmethyl

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4

K., C. MAJUMDAR, and DAS U. "Studies on Sigmatropic Rearrangements : Regioselective Synthesis of Coumarins, Quinolones and Thiocoumarins with 3,4-Fused Pyran or Furan Ring Systems by Claisen Rearrangement." Journal of Indian Chemical Society Vol. 74, Nov-Dec 1997 (1997): 884–90. https://doi.org/10.5281/zenodo.5900433.

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Department of Chemistry, University of Kalyam, Kalyana-741 235 <em>Manuscript received 4 September 1997</em> A brief review of the regioselective synthesis of pyrano[3,2-<em>c</em>][1]benzopyran-5(2<em>H</em>)-ones, pyrano[3,2-<em>c</em>][1]benzothiapyran-5(2<em>H</em>)-one, pyrano[3,2-<em>c</em>]quinolin-5(2<em>H</em>)-ones, pyrano(2,3-<em>c</em>)[1]benzopyran-5(3<em>H</em>)-ones, 3<em>H</em>-pyrano[2,3-<em>c</em>)quinolin-5(6H)-ones, thiapyrano(2, 3- b) (1)benzothiapyran-5(2<em>H</em>)-ones, thiapyrano[2,3-<em>b]</em> [1]benzopyran-5(2<em>H</em>)-ones, furo[3,2-<em>c</em>] [1] benzopyra

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5

Kraľovičová, Eva, Alžbeta Krutošíková, and Jaroslav Kováč. "Preparation and reactions of thieno[3,2-b]furan derivatives." Collection of Czechoslovak Chemical Communications 51, no. 8 (1986): 1685–91. http://dx.doi.org/10.1135/cccc19861685.

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Reactions of 3-(5-aryl-2-furyl)propenoic, 3-(2-benzo[b]furyl)propenoic and 3-(5-ethoxycarbonyl-4H-furo[3,2-b]-2-pyrrolyl)propenoic acids with thionyl chloride in the presence of triethylbenzylammonium chloride were investigated. The obtained 2-arylthieno[3,2-b]-furan-5-carboxylic acid chlorides Ia - Ic and 3-chlorothieno[3,2-b]benzo[b]furan-2-carboxylic acid chloride afforded in substitution nucleophilic reactions the corresponding esters V and carboxylic acids VI which were decarboxylated to VII. 3-Chlorothieno[3,2-b]benzo[b]furan-2-carboxylic acid chloride (Id), 6-ethoxycarbonyl-3-chlorothie

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6

Gajdoš, Peter, Soňa Pavlíková, Filip Bureš, and Alžbeta Krutošíková. "2-[3-(Trifluoromethyl)phenyl]furo[3,2-b]pyrroles: synthesis and reactions." Open Chemistry 3, no. 2 (2005): 311–25. http://dx.doi.org/10.2478/bf02475999.

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AbstractThe synthesis and reactions of methyl 2-[3-(trifluoromethyl)phenyl]-4H-furo[3,2-b]pyrrole-5-carboxylate (1a) are described. Upon reaction with methyl iodide, benzyl chloride, or acetic anhydride, this compound gave N-substituted products 1b-d. By hydrolysis of compounds 1a-c, the corresponding acids 2a-c were formed, or by reaction with hydrazine-hydrate, the corresponding carbohydrazides 3a-c were formed. By heating 2-[3-(trifluoromethyl)phenly]-4H-furo[3,2-b]pyrrole-5-carboxylic acid (2a) in acetic anhydride, 4-acetyl-2-[3-(trifluoromethyl)phenyl]furo[3,2-b]pyrrole (4) was formed. By

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7

Yang, Ru Chun, Hui Zhu, Xuan Ye Jin, Qiang Xiao, and Yong Ju. "Synthesis of Bicyclic Furo[2,3-d]pyrimidine Deoxynucleosides Conjugated with N-Diisopropylphosphoryl Amino Acids." Advanced Materials Research 881-883 (January 2014): 405–9. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.405.

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A series of bicyclic furo[2,3-d]pyrimidine nucleosides conjugated with N-diisopropylphosphoryl amino acids were synthesized from 2′-deoxy-5-iodouridine. The key step is its cross coupling with the 5-phthalimido-1-pentyne under Sonogashira reaction condition. 5-Endo-dig electrophilic cyclization catalyzed by AgNO3 is used to afford the furo[2,3-d]pyrimidines.

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8

Abu-Hashem, Ameen Ali, and Sami A. Al-Hussain. "The Synthesis, Antimicrobial Activity, and Molecular Docking of New 1, 2, 4-Triazole, 1, 2, 4-Triazepine, Quinoline, and Pyrimidine Scaffolds Condensed to Naturally Occurring Furochromones." Pharmaceuticals 15, no. 10 (2022): 1232. http://dx.doi.org/10.3390/ph15101232.

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This study aims to synthesize a new series of furochromone derivatives, evaluate their antimicrobial properties, and improve the permeability of potent compounds to inhibit different types of bacteria and fungi. Hence, Substituted furo[3,2-g]chromene-6-carbonitrile (3a,b) readily form 7-amino-5-methyl-furo [3,2-g]chromene-6-carbonitrile (4a,b) via reduction using sodium borohydride in methanol. The same compounds of (4a,b) were used as starting materials for the synthesis of new furochromone derivatives such as furochromeno [2,3-d]pyrimidines, N- (6-cyano- 5-methyl-furochromene) acetamide, N-(

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9

Mehta, Vaibhav P., Sachin G. Modha, Denis Ermolat'ev, Kristof Van Hecke, Luc Van Meervelt, and Erik V. Van der Eycken. "Diversity-Oriented Synthesis of Substituted Furo[2,3-b]pyrazines." Australian Journal of Chemistry 62, no. 1 (2009): 27. http://dx.doi.org/10.1071/ch08376.

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A highly efficient method for the synthesis of diversely substituted furo[2,3-b]pyrazines has been elaborated. The Ag+- or iodine-mediated electrophilic cyclization of readily generated 5-chloro-3-substituted ethynyl-1-(4-methoxybenzyl)-pyrazin-2(1H)-ones affords substituted furo[2,3-b]pyrazines, which undergo various palladium catalyzed reactions to generate a library of difficult to attain diversely substituted furo[2,3-b]pyrazines.

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10

El-Sayed, K., A. M. Abd El-Rahman, and H. L. Ammon. "Visnagin, C13H10O4(5-methoxy-2-methyl-furo-(9)-chromen)." Acta Crystallographica Section A Foundations of Crystallography 43, a1 (1987): C55. http://dx.doi.org/10.1107/s0108767387084009.

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Book chapters on the topic "5]furo(2"

1

Gangjee, A., J. Yang, J. J. McGuire, and R. L. Kisliuk. "Effect of Bridge Truncation of Classical 2,4-Diamino-5-Substituted Furo [2,3-d] Pyrimidine and 2-Amino-4-Oxo-6-Substituted Pyrrolo [2,3-d] Pyrimidine on Antifolate Activity." In Chemistry and Biology of Pteridines and Folates. Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0945-5_75.

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