Results 1 to 10 of about 29,559 (250)
An Efficient Protocol for the Synthesis of Quinoxaline Derivatives at Room Temperature Using Recyclable Alumina-Supported Heteropolyoxometalates [PDF]
The Scientific World Journal, 2012 We report a suitable quinoxaline synthesis using molybdophosphovanadates supported on commercial alumina cylinders as catalysts. These catalysts were prepared by incipient wetness impregnation.
Diego M. Ruiz +4 more
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Molecules, 2021 A quinoxaline scaffold exhibits various bioactivities in pharmacotherapeutic interests. In this research, twelve quinoxaline derivatives were synthesized and evaluated as new acetylcholinesterase inhibitors.
Paptawan Suwanhom +5 more
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Quinoxaline Moiety: A Potential Scaffold against Mycobacterium tuberculosis
Molecules, 2021 Background. The past decades have seen numerous efforts to develop new antitubercular agents. Currently, the available regimens are lengthy, only partially effective, and associated with high rates of adverse events. The challenge is therefore to develop
Marc Montana +3 more
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2-(4-Chloroanilino)quinoxaline [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 There are two mol-ecules in the asymmetric unit of the title compound, C(14)H(10)ClN(3), with dihedral angles of 5.11 (10) and 13.61 (10)° between the aromatic ring systems. In the crystal structure, mol-ecules are linked by N-H⋯N hydrogen bonds, resulting in chains propagating in [010].
Azila Idris +4 more
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Molecules, 2019 Despite major advancements in the development of various chemotherapeutic agents, treatment for lung cancer remains costly, ineffective, toxic to normal non-cancerous cells, and still hampered by a high level of remissions.
Mixo Aunny Sibiya +5 more
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Ionic liquid 1-butyl-3-methylimidazolium bromide ([bmim]Br): a green and neutral reaction media for the efficient, catalyst-free synthesis of quinoxaline derivatives [PDF]
Journal of the Serbian Chemical Society, 2010 Quinoxaline derivatives were produced in excellent yields and short reaction times via the condensation of 1,2-diamines with 1,2-diketones in the neutral ionic liquid 1-butyl-3-methylimidazolium bromide ([bmim]Br) under catalyst-free and microwave ...
MAASOOMEH KHEDRI +9 more
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Synthesis and biological activity of some heterocyclic compounds containing quinoxaline and coumarin moieties [PDF]
Journal of the Serbian Chemical Society, 2000 2,3-Dichloroquinoxaline (2) condensed with 7,8-dihydroxy-4-methylcoumarin to give the 1,4-dioxane derivative 4. 2.3-Dichloroquinoxaline (2) reacted with 4-hydroxycoumarin, 7-hydroxy-4-methylcoumarin and acyl hydrazide 13 to give either the 2,3 ...
M. E. ABD EL-FATTAH, I. M. EL-DEEN
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Results in Chemistry, 2023 Medicinal chemistry is a basic science that involves identification, synthesis and development of new drugs for therapeutic use. Biological importance of heterocycles makes them more crucial in pharmaceutical industries.In this work heterocyclics like ...
Geethavani Meka, Ramakrishna Chintakunta
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Quinoxaline-2-carbonitrile [PDF]
Acta Crystallographica Section E Structure Reports Online, 2009 In the title compound, C9H5N3, the quinoxaline ring is essentially planar, with a maximum deviation of 0.012 (1) Å. Short intermolecular distances between the centroids of the 2,3-dihydropyrazine and benzene rings [3.6490 (5) Å] indicate the existence of π⋯π interactions.
Hoong‐Kun Fun +4 more
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Frontiers in Chemistry, 2020 Quinoxaline derivatives demonstrate many distinguished chemical, biological, and physical properties and have a wide application in dyes, electroluminescent material, organic semiconductors, biological agents, etc.
Yanmei Yang +8 more
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