Relevant bibliographies by topics / Dihydropyraziny

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Dihydropyraziny'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Dihydropyraziny"

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Vlček, Pavel, Zdeněk Havlas, and Zdeněk Pavlíček. "Are 1,4-Dihydropyrazines Antiaromatic? Ab initio Study of 1,4-Dihydropyrazines and Their Tetrahydro Derivatives." Collection of Czechoslovak Chemical Communications 64, no. 4 (1999): 633–48. http://dx.doi.org/10.1135/cccc19990633.

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A set of twenty molecules containing 1,4-dihydro- or tetrahydropyrazine ring was calculated using ab initio methods. This set also includes previously prepared diacetyl- or disilyldihydropyrazines. Structures of 1,4-dihydropyrazine derivatives are strongly dependent on ring substituents and change from planar to heavily distorted boat conformations. In the planar and near-planar structures of some 1,4-diacyl- or 1,4-diformyl-1,4-dihydropyrazines, conjugation of nitrogen lone pairs and ring bond π electrons is small. Structures, bond lengths and bond orders of 1,4-dihydropyrazines and their tet
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Li, Huan Huan, Hai Bin Chu, Ying Nan Chen, et al. "Effects of Acidity on Nitrogen-Heterocyclic Compounds with Rare Earth Coordination and the Structure of Protonated Phenanthroline." Advanced Materials Research 233-235 (May 2011): 2808–11. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.2808.

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2,3-bis(2-pyridyl)-5,6-dihydropyrazine and a protonated phenanthroline (Phen) have been synthesized and the structure of protonated Phen is established by X-ray diffraction single crystal structure analysis. The coordination reactions of Phen, 2,2'- bipyridine and 2,3-bis(2-pyridyl)-5,6-dihydropyrazine with rare earth ions in low pH have been studied. The results show that 2,3-bis(2-pyridyl)-5,6-dihydropyrazine is hydrolyzed to be 2,2’-pyridil and protonated ethylenediamine. Meanwhile, Phen combines with proton, which results that nitrogen atoms can not coordinate with rare earth ions. The mol
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St. Hilaire, Valentine R., William E. Hopkins, Yenteeo S. Miller, Srinivasa R. Dandepally та Alfred L. Williams. "Regioselective addition of Grignard reagents to N-acylpyrazinium salts: synthesis of substituted 1,2-dihydropyrazines and Δ5-2-oxopiperazines". Beilstein Journal of Organic Chemistry 15 (8 січня 2019): 72–78. http://dx.doi.org/10.3762/bjoc.15.8.

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The regioselective addition of Grignard reagents to mono- and disubstituted N-acylpyrazinium salts affording substituted 1,2-dihydropyrazines in modest to excellent yields (45–100%) is described. Under acidic conditions, these 1,2-dihydropyrazines can be converted to substituted Δ5-2-oxopiperazines providing a simple and efficient approach towards their preparation.
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Shoukat Ali, Shaikh Saddam, Kingshuk Roy, Naveenkumar Akula, Satishchandra B. Ogale, and Moumita Majumdar. "Air exposed 1,4-bis(trimethylsilyl)-1,4-dihydropyrazine: an avant-garde carbonization precursor for multi-functionalized carbon material." Chemical Communications 56, no. 94 (2020): 14805–8. http://dx.doi.org/10.1039/d0cc06597h.

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Takechi, Shinji, Shigeru Ito, Nobuhiro Kashige, Takumi Ishida, and Tadatoshi Yamaguchi. "Glutathione depression by dihydropyrazine derivative." Journal of Toxicological Sciences 36, no. 2 (2011): 231–35. http://dx.doi.org/10.2131/jts.36.231.

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Takechi, Shinji, Shigeru Ito, Nobuhiro Kashige, Takumi Ishida, and Tadatoshi Yamaguchi. "Identification of dihydropyrazine-glutathione adducts." Journal of Toxicological Sciences 40, no. 4 (2015): 495–500. http://dx.doi.org/10.2131/jts.40.495.

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Gompper, Rudolf, and Walter Breitschaft. "Diazachinodimethane, donorsubstituierte Pyrazine und Dihydropyrazine." Angewandte Chemie 95, no. 9 (2006): 727–29. http://dx.doi.org/10.1002/ange.19830950908.

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Fan, Qiangwen, Xiaowei Duan, and Hong Yan. "Solid state [2 + 2] photocycloaddition for constructing dimers of N,N′-diacyl-1,4-dihydropyrazines based on thiourea-induced assembly." CrystEngComm 20, no. 8 (2018): 1151–57. http://dx.doi.org/10.1039/c7ce01996c.

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Rakhi, Ramachandran, and Cherumuttathu H. Suresh. "A DFT study on dihydropyrazine annulated linear polyacenes: aromaticity, stability and HOMO–LUMO energy modulation." Physical Chemistry Chemical Physics 18, no. 35 (2016): 24631–41. http://dx.doi.org/10.1039/c6cp03723b.

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Linear polyacene (LPA) mimics containing up to 34 rings have been designed by annulating dihydropyrazine units to LPA cores and they showed enhanced aromatic character than the LPA due to significant mixing of the N-lone pairs with the carbon π-orbitals.
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Molla, Gianluca, Marco Nardini, Paolo Motta, Paola D’Arrigo, Walter Panzeri, and Loredano Pollegioni. "Aminoacetone oxidase from Streptococcus oligofermentans belongs to a new three-domain family of bacterial flavoproteins." Biochemical Journal 464, no. 3 (2014): 387–99. http://dx.doi.org/10.1042/bj20140972.

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Determination of the 3D structure and biochemical characterization of aminoacetone oxidase from Streptomyces oligofermentans reveal that this enzyme belongs to a novel family of flavoproteins which catalyses the condensation of two aminoacetone molecules yielding 3,6-dimethyl-2,5-dihydropyrazine and, eventually, 2,5-dimethylpyrazine.
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Dissertations / Theses on the topic "Dihydropyraziny"

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Coufal, Radek. "Reverzibilní interakce derivátů pyrazinu a dihydropyrazinů s fotoluminiscenčními vlastnostmi." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-339189.

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This thesis deals with two independent topics. The first is focused on the study of reversible covalent interactions of a carbonyl group with alcohols and water forming hemiacetals (respectively hydrate) derived from pyrazine trifluormethylketone. The main research method in this part is the NMR spectroscopy and experimental results are also supported by quantum chemical calculations. The second topic aims to the preparation and the study of photochemical properties of three dihydropyrazines which exhibit fluorescence both in solution and solid phase. The fluorescence can be influenced by mean
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Moreau, Elaine. "Synthèse d'amines [alpha]-chirales : addition énantiosélective d'organozinciques sur les N-phosphinoylimines : étude électronique et stérique et synthèse asymétrique d'esters [alpha]-aminés via la (S)-2-t-butyl-3,6-dimethoxy-2,5-dihydropyrazine." Thèse, 2005. http://hdl.handle.net/1866/16757.

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Book chapters on the topic "Dihydropyraziny"

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Knoerzer, MacKinnly, Gavin R. Hoffman, Hannah K. Maben, et al. "Synthesis and NMR Characterization of a Dihydropyrazine, a Tetrahydroquinoxaline and a Tetrahydrooxadiazolopyrazine." In ACS Symposium Series. American Chemical Society, 2021. http://dx.doi.org/10.1021/bk-2021-1376.ch014.

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Sato, N. "Dehydrogenation of Dihydropyrazines." In Six-Membered Hetarenes with Two Identical Heteroatoms. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-116-00455.

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List, B., C. Chandler, R. R. Torres, and A. Erkkilä. "Synthesis of 1,4-Dihydropyrazines." In X-Ene-X (X=F, Cl, Br, I, O, S, Se, Te, N, P), Ene-Hal, and Ene-O Compounds. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-032-00407.

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Sapeta, K., and M. A. Kerr. "Rearrangements of 3,4-Dihydropyrazino[1,2-]indazol-2-ium 6-Oxides." In Science of Synthesis Knowledge Updates KU 2011/1. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-112-00111.

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Yamaguchi, Tadatoshi, Shigeru Ito, Nobuhiro Kashige, Hajime Nomura, and Shinji Takechi. "The characteristics of dihydropyrazines having DNA strand-breakage activity." In 19th International Congress on Heterocyclic Chemistry. Elsevier, 2003. http://dx.doi.org/10.1016/b978-0-08-044304-1.50356-7.

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Gobec, S., and U. Urleb. "Cycloaddition of 2,3-Bis(bromomethylene)-2,3-dihydropyrazine to Electron-Rich Dienophiles." In Six-Membered Hetarenes with Two Identical Heteroatoms. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-016-01060.

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Sato, N. "Dehydrogenation of Dihydropyrazines and Oxidative Chlorination of Piperazine-2,5-diones." In Six-Membered Hetarenes with Two Identical Heteroatoms. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-016-00958.

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Conference papers on the topic "Dihydropyraziny"

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Bagnoli, Luana, Matilde Sisti, Luca Sancineto, Francesca Marini, and Claudio Santi. "Synthesis of 3,4-Dihydropyrazino[1,2-a]indol-1(2H)-Ones by Cascade Addition-Cyclization Reactions from Vinyl Selenones." In The 18th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2014. http://dx.doi.org/10.3390/ecsoc-18-a011.

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Journal articles
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