Download or read book Substituted Quinoxalines written by Astley R. McLaughlin and published by . This book was released on 1981 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Reactivity of Methyl Groups in Substituted Quinoxalines written by G. H. Willis and published by . This book was released on 1930 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quinoxalines written by Vakhid A. Mamedov and published by Springer. This book was released on 2016-04-26 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the fundamental aspects of quinoxaline chemistry: synthesis, reactions, mechanisms, structure, properties, and uses. The first four chapters present a survey of the developments in quinoxaline chemistry since the publication of the monograph on “Condensed Pyrazines” by Cheeseman and Cookson in 1979. These chapters give comprehensive coverage of all the methods of the synthesis of quinoxalines and the important quinoxaline-containing ring systems such as thiazolo[3,4-a]-, pyrrolo[1,2-a]-, and imidazo[1,5-a]quinoxalines. Chapter five describes many new methods for the construction of quinoxaline macrocycles, which are important in applications such as optical devices and materials. The final chapter reviews all previously known rearrangements of heterocyclic systems that lead to benzimidazole derivatives. Mamedov critically analyses these transformations to reveal a novel acid-catalyzed rearrangement of quinoxalinones giving 2-heteroarylbenzimidazoles and 1-heteroarylbenzimidazolones in the presence of nucleophilic reactants (MAMEDOV Heterocycle Rearrangement). This book is of interest to researchers in the fields of heterocyclic and synthetic organic chemistry.
Download or read book Synthesis of Some Substituted Pyrrolo 3 4 b Quinoxalines written by Wayne C. Appleton and published by . This book was released on 1971 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Functional Quinoxaline Derivatives for the Application in Biology and Materials Sciences written by Laura Holzhauer and published by Logos Verlag Berlin GmbH. This book was released on 2024-02-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen-containing heterocycles belong to the most versatile and important compounds for medicinal chemistry and sustainable and advanced materials. Around 60 % of FDA-approved unique small molecule drugs incorporate a nitrogen heterocycle. N-heterocyclic compounds are essential components of organic light-emitting diodes and organic solar cells. Quinoxalines are a class of heterocyclic compounds accessible by straightforward syntheses, present in commercially available drugs and optoelectronic architectures. In this work, quinoxaline-containing compounds were synthesized and analyzed regarding their potential uses in biology and materials science, focusing on nitrogen-rich and dimeric quinoxalines. Various tetrazolo[1,5-a]quinoxalines were synthesized and converted to 1,2,3-triazoloquinoxalines and novel triazoloimidazoquinoxalines via a modified CuAAC procedure. A previously unknown copper-catalyzed denitrogenative annulation process was described in this context. As tankyrase inhibitors, substituted tetrazolo[1,5-a]quinoxaline derivatives were assembled and tested in biological studies. Moreover, the synthesis of quinoxaline dimers and metal complexation of selected 1,2,3-triazoloquinoxalines was investigated. Donor-acceptor emitter structures were assembled employing suitable tetrazolo [1,5-a]quinoxalines and 1,2,3-triazoloquinoxalines and their emissive properties were explored, highlighting the influence of the direction of the triazole linker on delayed fluorescence.
Download or read book An Infrared Study of Some 6 substituted Quinoxaline 2 3 dicarbonitriles written by Bernard A. Olsen and published by . This book was released on 1974 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in the Quinoxaline Series written by Elly Helen Hinreiner and published by . This book was released on 1947 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Nitro substituted 1 2 benzenediamines Phenols Quinoxalines and Benzimidazoles Via 2 1 3 benzoselenadiazoles written by Wei Tian and published by . This book was released on 1993 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Chemical Properties of 2 substituted Pyrrolo 3 4 b Quinoxalines and II written by Lee-Kyung Cho and published by . This book was released on 1974 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reactions of Substituted Quinoxaline 1 4 dioxides written by Roset Artinian and published by . This book was released on 1984 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthetic Approaches to 2 substituted Pyrazines and 2 substituted Quinoxalines and Their Fluorescence Characteristics written by Azila Mohd Idris and published by . This book was released on 2009 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Reactions of Alkyl substituted Quinoxaline 1 4 dioxides written by Huda Hamdan and published by . This book was released on 1986 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Reactions of Substituted Quinoxaline 1 4 dioxides written by Muhammad Adnan Atfah and published by . This book was released on 1978 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quinoxalines Volume 61 Spplement 2 written by Desmond J. Brown and published by John Wiley & Sons. This book was released on 2004-02-15 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume in the Chemistry of Heterocyclic Compounds series presents a comprehensive review of the quinoxaline literature from 1975 to the present (2002), updating Volumes 5 and 35. It provides an alphabetical table of known simple quinoxalines, including new compounds discussed in this volume and their physical data, as well as the pyrazines from the original volumes. Biological activities, spectral or other physical studies, and other such materials appear at appropriate points in the text. The in-depth coverage includes synthesis, reactions, spectroscopic, and physical properties for each class of compounds. Chemistry of Heterocyclic Compounds, Volume 61: Supplement II provides the most up-to-date summation of knowledge of the synthetic chemistry of quinoxalines.
Download or read book Progress in Heterocyclic Chemistry written by Vakhid A. Mamedov and published by Elsevier Inc. Chapters. This book was released on 2013-09-06 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the second part of this two-part review (for Part 1 see V.A. Mamedov, A. Nataliya, N.A. Zhukova, Prog. Heterocycl. Chem. 2012, 24, 55), recent advances in the synthesis of quinoxalines are reviewed. Syntheses that start from pyrazine fragments and from benzenoid units are discussed. The review covers quinoxaline synthesis starting from anilines and derivatives of anilines, from nitroarenes, from other heterocycles, including benzimidazoles, benzodiazepines, and from fragments that contain neither a pyrazine ring nor a benzene ring, for example, epoxides and azirines, pyrrolidin-3-ones and piperidin-3-ones, γ-butyrolactones, pyran-2,3-diones, and 4-hydroxythiazolidines, amongst others.
Download or read book Some Reactions of Methyl substituted Quinoxaline di N oxides written by Muhammad Adnan Atfah and published by . This book was released on 1974 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some New Pyridyl substituted Pyrazines and Quinoxalines as Reagents for Copper and Iron written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
