Relevant bibliographies by topics / Bis(2'-thienyl)pyrazine derivatives

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  2. Dissertations / Theses

Academic literature on the topic 'Bis(2'-thienyl)pyrazine derivatives'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Bis(2'-thienyl)pyrazine derivatives"

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Keshtov, M. L., V. S. Kochurov, Ganesh Datt Sharma, and A. R. Khokhlov. "Synthesis of new conjugated copolymers containing 4,8-bis(dodecyloxy)benzo[1,2-b:4,5-b′]dithiophene/5,7-bis(3,4-diethylthien-2-yl)-2,3-diphenylthieno[3,4-b]pyrazine and 4,8-bis(dodecyloxy)benzo[1,2-b:4,5-b′]dithiophene/4,6-di(3,4-diethylthien-2-yl)-thieno[3,4-c][1,2,5]thiadiazole derivatives for photovoltaic applications." Polymer Science Series B 55, no. 5-6 (May 2013): 373–81. http://dx.doi.org/10.1134/s1560090413060067.

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2

Mørkved, Eva H., Nils K. Afseth, and Helge Kjøsen. "Zn(quinoline)2Cl2: an efficient reagent for synthesis of zinc azaphthalocyanines with thiomorpholine- or pyrazole substituents." Journal of Porphyrins and Phthalocyanines 10, no. 11 (November 2006): 1301–8. http://dx.doi.org/10.1142/s1088424606000673.

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The Zn ( quinoline )2 Cl 2 complex is found to be a convenient reagent for the direct synthesis of amino-substituted, zinc azaphthalocyanines. Octa(4-thiomorpholinyl)- and octa(1-pyrazolyl)- substituted zinc azaphthalocyanines were synthesized from pyrazines, 5,6-bis(4-thiomorpholinyl)pyrazine-2,3-dicarbonitrile and 5,6-bis(1-pyrazolyl)pyrazine-2,3-dicarbonitrile, respectively and dry Zn ( quinoline )2 Cl 2. Two zinc azaphthalocyanines, both mixtures of four constitutional isomers, were synthesized by the same method, from 6-(2-thienyl)-5-(4-thiomorpholinyl)pyrazine-2,3-dicarbonitrile and from 6-(2-thienyl)-5-(1-pyrazolyl)pyrazine-2,3-dicarbonitrile respectively. The octa(4-thiomorpholinyl)- and octa(1-pyrazolyl)-substituted zinc azaphthalocyanines and the zinc azaphthalocyanines with mixed substituents were characterized by elemental analyses, TOF-SIMS, 1 H and 13 C NMR, and UV-vis spectroscopic methods. Q-bands for octa(4-thiomorpholinyl)- and octa(1-pyrazolyl)-substituted zinc azaphthalocyanines and the zinc azaphthalocyanines with mixed substituents are found at respectively 655 and 670 nm (ɛ: 100 000-180 000 M-1.cm-1).
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Popek, Rafal, and Guy Crundwell. "Crystal structures of 2,3-bis(thiophen-2-yl)pyrido[2,3-b]pyrazine and 7-bromo-2,3-bis(thiophen-2-yl)pyrido[2,3-b]pyrazine." Acta Crystallographica Section E Crystallographic Communications 75, no. 1 (January 1, 2019): 89–93. http://dx.doi.org/10.1107/s2056989018016882.

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The crystal structures of 2,3-bis(thiophen-2-yl)pyrido[2,3-b]pyrazine, C15H9N3S2 (1), and 7-bromo-2,3-bis(thiophen-2-yl)pyrido[2,3-b]pyrazine, C15H8BrN3S2 (2), are discussed. Both molecules crystallize in space group P21/c. In 1, the thienyl rings are inclined to the mean plane of the pyridopyrazine moiety by 6.16 (7) and 86.66 (8)°, where as in 2 the corresponding dihedral angles are 33.29 (11) and 19.84 (9)°. The pyridopyrazine moiety is relatively planar in 1 with the two rings being inclined to each other by 1.33 (7)°. In 2, however, the pyridopyrazine moiety is buckled with the corresponding dihedral angle being larger at 8.78 (10)°. In the crystal of 1, the packing creates intersecting bilayers; the layering results from the pyridopyrazine moieties being engaged in offset π-stacking, where the interplanar distance is 3.431 (9) Å with an offset 1.14 Å. In the crystal of 2, the molecules pack head-to-head and are linked by a series of C—H...Br and C—H...N intermolecular interactions, forming layers parallel to the ab plane.
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Jurášek, Adolf, Vladimír Žvak, Jaroslav Kováč, Oľga Rajniaková, and Jarmila Štetinová. "Synthesis and reactions of β-substituted derivatives of furan." Collection of Czechoslovak Chemical Communications 50, no. 9 (1985): 2077–83. http://dx.doi.org/10.1135/cccc19852077.

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The 1,4-cycloaddition reaction of 4-phenyl-1,3-oxazole to 2-propinyl benzoate and dimethyl butinedioate afforded the respective 3-furylmethyl benzoate (I) and 3,4-bis(methoxycarbonyl)furan (II). These compounds served for the synthesis of 3-chloromethylfuran and 3,4-bis(chloromethyl)furan, which afforded via Wittig reaction 3-(β-arylvinyl)furans III (aryl = 5-nitro-2-furyl (IIIa), 5-nitro-2-thienyl (IIIb), 1-methyl-4-nitro-2-pyrrolyl (IIIc), and 4-nitrophenyl (IIIe)) and 3,4-bis(β-arylvinyl)furans IV (aryl = 5-nitrofuryl (IVa), 5-nitro-2-thienyl (IVc), and 4-nitrophenyl (IVd)). According to spectral evidence (1H NMR, IR, UV spectra), compound IIIa and IIIb originated as E isomers, whilst the remaining products are a mixture of E and Z isomers; some couples were succeded to separate.
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Pu, Shouzhi, Shengsheng Zhu, Yi Rao, Gang Liu, and Huizhen Wei. "Photochromism of 1,2-bis(2-n-alkyl-5-formyl-3-thienyl)perfluorocyclopentene derivatives." Journal of Molecular Structure 921, no. 1-3 (March 2009): 89–100. http://dx.doi.org/10.1016/j.molstruc.2008.12.039.

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6

Galindo, Miguel A., Jennifer Hannant, Ross W. Harrington, William Clegg, Benjamin R. Horrocks, Andrew R. Pike, and Andrew Houlton. "Pyrrolyl-, 2-(2-thienyl)pyrrolyl- and 2,5-bis(2-thienyl)pyrrolyl-nucleosides: synthesis, molecular and electronic structure, and redox behaviour of C5-thymidine derivatives." Organic & Biomolecular Chemistry 9, no. 5 (2011): 1555. http://dx.doi.org/10.1039/c0ob00466a.

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7

Kitamura, Chitoshi, Shoji Tanaka, and Yoshiro Yamashita. "Synthesis of new narrow bandgap polymers based on 5,7-di(2-thienyl)thieno[3,4-b]pyrazine and its derivatives." Journal of the Chemical Society, Chemical Communications, no. 13 (1994): 1585. http://dx.doi.org/10.1039/c39940001585.

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Tatsumi, Yuto, Jun-ichiro Kitai, Waka Uchida, Koji Ogata, Shinichiro Nakamura, and Kingo Uchida. "Photochromism of 1,2-Bis(2-thienyl)perfluorocyclopentene Derivatives: Substituent Effect on the Reactive Carbon Atoms." Journal of Physical Chemistry A 116, no. 45 (November 2012): 10973–79. http://dx.doi.org/10.1021/jp3092978.

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Toyota, Kozo, Hiroshi Katsuta, Takeaki Iwamoto, and Noboru Morita. "Preparation of 1,4-bis(2-ethynyl-3-thienyl) benzene derivatives linked by oligo(ethyleneglycol) chain." Heteroatom Chemistry 22, no. 3-4 (2011): 531–37. http://dx.doi.org/10.1002/hc.20718.

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Toyota, Kozo, Hiroshi Katsuta, Takeaki Iwamoto, and Noboru Morita. "Preparation of 1,4-bis(2-ethynyl-3-thienyl)benzene derivatives linked by oligo(ethyleneglycol) Chain." Heteroatom Chemistry 23, no. 1 (2012): 122. http://dx.doi.org/10.1002/hc.20757.

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Dissertations / Theses on the topic "Bis(2'-thienyl)pyrazine derivatives"

1

Krajčovič, Jozef. "Studium thiofenových oligo-kopolymerů: syntéza a optoelektronické vlastnosti." Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2010. http://www.nusl.cz/ntk/nusl-233316.

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Thesis presents synthesis and study of thiophene monomers, oligomers and polymers. The new series of thieno[3,4-b]pyrazine copolymers based on 3-dodecylthiophene and pyrazine monomers were prepared by oxidative polymerization with FeCl3. The effective synthetic method for preparation of 3-alkylthiophenes and thiophene oligomers was developed by optimizing of Kumada cross-couplig. The mentioned method could be realized for multikilos scale with possibility of transfer to pilot plant production. The second part of thesis focuses on synthesis and study of new thiophene compounds, which consist of both 2,3-diazo-1,3-butadiene bridge with two terminal chromophores and two thiophene units linked together via -position by pyrazine or hydrazine bridge. Finally, the new type of regular alternating copolymer consists of 2,2´:5´,2´´-terthiophene-5,5´-dicarboxylic acid (TEDA) and polyethyleneoxide (PEO) was prepared. Formation of polymer nano-subunits as separated phases in solid state was confirmed by TEM.
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