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Relevant bibliographies by topics / Thiophenes Synthesis

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Journal articles

Academic literature on the topic 'Thiophenes Synthesis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Thiophenes Synthesis"

1

Duc, Dau Xuan. "Recent Progress in the Synthesis of Benzo[b]thiophene." Current Organic Chemistry 24, no. 19 (2020): 2256–71. http://dx.doi.org/10.2174/1385272824999200820151545.

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: Benzo[b]thiophenes are aromatic heterocyclic compounds containing benzene and thiophene rings. This class of heterocycles is present in a large number of natural and non-natural compounds. Benzo[b]thiophene derivatives have a broad range of applications in medicinal chemistry such as antimicrobial, anticancer, antioxidant, anti-HIV and antiinflammatory activities. The use of benzo[b]thiophene derivatives in other fields has also been reported. Various benzo[b]thiophenes compounds have been employed as organic photoelectric materials, while several benzo[b]thiophenes have been used as organic

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2

Irgashev, Roman A., Nadezhda S. Demina, and Gennady L. Rusinov. "Construction of 2,3-disubstituted benzo[b]thieno[2,3-d]thiophenes and benzo[4,5]selenopheno[3,2-b]thiophenes using the Fiesselmann thiophene synthesis." Organic & Biomolecular Chemistry 18, no. 16 (2020): 3164–68. http://dx.doi.org/10.1039/d0ob00300j.

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3

Damit, E. F., N. Nordin, A. Ariffin, and K. Sulaiman. "Synthesis of Novel Derivatives of Carbazole-Thiophene, Their Electronic Properties, and Computational Studies." Journal of Chemistry 2016 (2016): 1–14. http://dx.doi.org/10.1155/2016/9360230.

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A series of carbazole-thiophene dimers,P1–P9, were synthesized using Suzuki-Miyaura and Ullmann coupling reactions. InP1–P9, carbazole-thiophenes were linked at the N-9 position for different core groups via biphenyl, dimethylbiphenyl, and phenyl. Electronic properties were evaluated by UV-Vis, cyclic voltammogram, and theoretical calculations. Particularly, the effects of conjugation connectivity on photophysical and electrochemical properties, as well as the correlation between carbazole-thiophene and the core, were studied. Carbazole connecting with thiophenes at the 3,6-positions and the p

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4

Zhou, Yue, Jie Hao, and Dongbing Zhao. "Divergent synthesis of 3-substituted thieno[3,4-b]thiophene derivatives via hydroxy-based transformations." Materials Chemistry Frontiers 3, no. 7 (2019): 1422–26. http://dx.doi.org/10.1039/c9qm00128j.

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Modular assembly of 3-substituted thieno[3,4-b]thiophenes: we have developed the first Pd-catalytic method to access 3-hydroxythieno[3,4-b]thiophene-2-carboxylate, which can be widely utilized for modular assembly of structurally diverse 3-substituted thieno[3,4-b]thiophene derivatives.

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5

Suárez, José Agustín Quincoces, Alfredo Peña Ricardo, José Matheus Freitas Costa, Carolina Passarelli Gonçalves, Mário Augusto Tremante та Manuel Salustiano Almeida Saavedra. "Synthesis of Tetrasubstituted Thiophenes Starting from Amino Mercaptoacrylates and α-brominated Acetamides". Current Organic Chemistry 25, № 6 (2021): 748–56. http://dx.doi.org/10.2174/1385272825666210111112449.

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Some thiophenic derivatives show important biological activity or are used as intermediates in organic synthesis. For this reason, it is very important to develop new synthesis procedures with good yields and using few synthesis steps. The present work offers an overview of the method for obtaining substituted thiophenes reported in the literature, and the synthetic procedures used from push-pull systems. In this work, we present the synthesis of 14 new tetrasubstituted thiophenes starting from amino mercaptoacrylates and α-brominated acetamides, derived from furoyl and benzoylacetonitrile, re

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6

Ilhan, Koray T., Sebahat Topal, Mehmet S. Eroglu, and Turan Ozturk. "Concise synthesis of 3-alkylthieno[3,2-b]thiophenes; building blocks for organic electronic and optoelectronic materials." RSC Advances 9, no. 66 (2019): 38407–13. http://dx.doi.org/10.1039/c9ra08023f.

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Four step synthesis of 3-alkylthieno[3,2-b]thiophenes in the literature was reduced to two steps in good yields, through the preparation of the mono ketone, i.e. 1-(thiophene-3-ylthio)alkan-2-one, from 3-bromothiophene and ring formation reaction.

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7

Batista, Rosa M. F., Susana P. G. Costa, Michael Belsley, and M. Manuela M. Raposo. "Synthesis and Characterization of Novel Donor-Acceptor Oligothiophenes as Efficient and Thermally Stable Second-Order Nonlinear Optical Chromophores." Materials Science Forum 636-637 (January 2010): 380–86. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.380.

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New push-pull thiobarbituric (oligo)thiophene derivatives 1 were synthesized, in good to excellent yields (60-98%), through Knoevenagel condensation of the corresponding formyl-(oligo)thiophenes 2 with 1,3-diethylthiobarbituric acid in dichloromethane, under basic conditions. Evaluation of the thermal and solvatochromic properties of these compounds was carried out and their NLO response was estimated. The values obtained suggest that these (oligo)thiophenes have good potential to be used as novel NLO materials.

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8

Uozumi, Yasuhiro, Anggi Eka Purta, Shun Ichii, and Aya Tazawa. "C−H Arylation of Thiophenes with Aryl Bromides by a Parts-per-Million Loading of a Palladium NNC-Pincer Complex." Synlett 31, no. 16 (2020): 1634–38. http://dx.doi.org/10.1055/s-0040-1707213.

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A palladium NNC-pincer complex efficiently catalyzed the direct arylation of thiophene derivatives with extremely low palladium loadings of the order of parts per million. Thus, the reaction of various thiophenes with aryl bromides in the presence of 25–100 mol ppm of chlorido[(2-phenyl-κ-C 2)-9-phenyl-1,10-phenanthroline-κ2-N,N′]palladium(II) NNC-pincer complex, K2CO3, and pivalic acid in N,N-dimethylacetamide afforded the corresponding 2- or 5-arylated thiophenes in good to excellent yields. A combination of the present C–H arylation and Hiyama coupling with the same NNC-pincer complex prov

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9

Puciová, Monika, Peter Ertl, and Štefan Toma. "Synthesis of Ferrocenyl-Substituted Heterocycles: The Beneficial Effect of the Microwave Irradiation." Collection of Czechoslovak Chemical Communications 59, no. 1 (1994): 175–85. http://dx.doi.org/10.1135/cccc19940175.

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The synthesis of ferrocenyl-substituted thiophenes, furans, pyrroles, pyrimidine and pyrazole has been studied. 2-Ferrocenylpyrroles were prepared from ferrocenyl ketoximes and acetylene in DMSO - KOH mixture whereas 3-chloro-3-ferrocenylacrylaldehydes and thioglycolic or glycolic acids were the starting materials for the synthesis of the thiophene and furan derivatives. The yields were significantly enhanced when the reactions were carried out in a microwave oven. The lower stability of 2-ferrocenylfuran in comparison with 2-ferrocenylthiophene is discussed on the basis of semiempirical quant

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10

Yamamoto, Yoshihiko. "Synthesis of Fused Furans and Thiophenes via Ruthenium-Catalyzed Atom-Transfer [2+2+1] Cycloadditions of α,ω-Diynes". Synlett 28, № 11 (2017): 1250–57. http://dx.doi.org/10.1055/s-0036-1588767.

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Furans and thiophenes are important five-membered heterocyclic compounds that are found in natural products, functional materials, and pharmaceutics. This account outlines our studies on ruthenium-catalyzed atom-transfer [2+2+1] cycloadditions toward the synthesis of fused furans and thiophenes.1 Introduction2 Synthesis of Furans using Dimethyl Sulfoxide as the Oxygen Donor3 Synthesis of 2-Silylfurans Using Nitrones as Oxygen Donors4 Synthesis of Thiophenes Using Thiocarbonyls as Sulfur Donors5 Conclusions

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