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Academic Journal

Microwave-assisted Solvent-free Synthesis and in Vitro Antibacterial Screening of Quinoxalines and Pyrido[2, 3b]pyrazines.

Authors : Morales-Castellanos, J. Jesús¹ Jesus; Ramírez-Hernández, Karina¹ chemycal; Gómez-Flores, Nancy S.¹

Source: Molecules. May2012, Vol. 17 Issue 5, p5164-5176. 13p. 3 Diagrams, 3 Charts.

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Academic Journal

Synthesis of new γ-lactones from preactivated monosubstituted pyrazines and TMS-ketene acetals.

Authors : Garduño-Alva, Azucena¹; Ortega-Alfaro, M. Carmen²; López-Cortés, José G.¹

Source: Canadian Journal of Chemistry. May2012, Vol. 90 Issue 5, p469-482. 14p.

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Academic Journal

Thieno[3,4- b]pyrazines and Its Extended Analogs: Important Buildings Blocks for Conjugated Materials.

Authors : Rasmussen, Seth C.¹; Mulholland, Michael E.¹; Schwiderski, Ryan L.¹

Source: Journal of Heterocyclic Chemistry. May2012, Vol. 49 Issue 3, p479-493. 15p. 20 Diagrams, 5 Charts, 2 Graphs.

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Academic Journal

Protolytic opening of the furan ring in the synthesis of 5 H,10 H-dipyrrolo[1,2- a:1',2'- d]pyrazines.

Authors : Nevolina, T.¹; Shcherbinin, V.¹; Shpuntov, P.¹

Source: Chemistry of Heterocyclic Compounds. Aug2012, Vol. 48 Issue 5, p828-830. 3p.

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Academic Journal

The ortho and meta Magnesiation of Functionalized Anilines and Amino-Substituted Pyridines and Pyrazines at Room Temperature.

Authors : Monzón, Gabriel¹; Tirotta, Ilaria¹; Knochel, Paul¹

Source: Angewandte Chemie International Edition. Oct2012, Vol. 51 Issue 42, p10624-10627. 4p.

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Academic Journal

Palladium-Catalyzed Direct C-H Arylation of Thieno[3,4- b]pyrazines: Synthesis of Advanced Oligomeric and Polymeric Materials.

Authors : Abdo, Nabiha I.^1,2; El-Shehawy, Ashraf A.^1,3; El-Barbary, Ahmed A.²

Source: European Journal of Organic Chemistry. Oct2012, Vol. 2012 Issue 28, p5540-5551. 12p.

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Academic Journal

Large-Scale Solvent-Free Chlorination of Hydroxy-Pyrimidines, -Pyridines, -Pyrazines and -Amides Using Equimolar POCl3.

Authors : Han Wang^1,2; Kun Wen²; Le Wang²

Source: Molecules. Apr2012, Vol. 17 Issue 4, p4533-4544. 12p.

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Academic Journal

Synthesis and Antitubercular Evaluation of N-Arylpyrazine and N,N′-Alkyl-diylpyrazine-2-carboxamide Derivatives.

Authors : Bispo, Marcelle de Lima Ferreira¹; Gonçalves, Raoni Schroeder Borges¹; Lima, Camilo Henrique da Silva¹

Source: Journal of Heterocyclic Chemistry. Nov2012, Vol. 49 Issue 6, p1317-1322. 6p. 4 Diagrams, 3 Charts.

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Academic Journal

New Highlights in the Synthesis of 4-Aryl-1,4-dihydropyrazines.

Authors : He, Jing-Yu¹; Song, Xiu-Qing¹; Yan, Hong¹

Source: Journal of Heterocyclic Chemistry. Nov2012, Vol. 49 Issue 6, p1357-1361. 5p. 4 Diagrams, 2 Charts.

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Academic Journal

Hydrogen bonds between pyrazine and RCOOH (R = H, CH3, and C6H5): A theoretical study.

Authors : Nascimento, Renata X. D.¹ (AUTHOR); Belarmino, Márcia K. D. L.¹ (AUTHOR); Lima, Nathália B. D.¹ (AUTHOR)

Source: International Journal of Quantum Chemistry. Oct2012, Vol. 112 Issue 19, p3147-3151. 5p.

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نتائج البحث

فلترة النتائج

Microwave-assisted Solvent-free Synthesis and in Vitro Antibacterial Screening of Quinoxalines and Pyrido[2, 3b]pyrazines.

Synthesis of new γ-lactones from preactivated monosubstituted pyrazines and TMS-ketene acetals.

Thieno[3,4- b]pyrazines and Its Extended Analogs: Important Buildings Blocks for Conjugated Materials.

Protolytic opening of the furan ring in the synthesis of 5 H,10 H-dipyrrolo[1,2- a:1',2'- d]pyrazines.

The ortho and meta Magnesiation of Functionalized Anilines and Amino-Substituted Pyridines and Pyrazines at Room Temperature.

Palladium-Catalyzed Direct C-H Arylation of Thieno[3,4- b]pyrazines: Synthesis of Advanced Oligomeric and Polymeric Materials.

Large-Scale Solvent-Free Chlorination of Hydroxy-Pyrimidines, -Pyridines, -Pyrazines and -Amides Using Equimolar POCl3.

Synthesis and Antitubercular Evaluation of N-Arylpyrazine and N,N′-Alkyl-diylpyrazine-2-carboxamide Derivatives.

New Highlights in the Synthesis of 4-Aryl-1,4-dihydropyrazines.

Hydrogen bonds between pyrazine and RCOOH (R = H, CH3, and C6H5): A theoretical study.

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