Download or read book Photochemistry of Benzo 2 3 g quinoxaline Derivatives written by Muriel Rakotomalala and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its discovery in 1867, the photodimerisation of anthracene has been one of the most exploited reactions for reversibly connecting materials at a molecular level. The cumbersome synthesis of many substituted anthracene derivatives combined with their tendency to form endoperodixes when irradiated in presence of oxygen and the short wavelengths needed to convert the dimer to its monomer prohibit their use in practical applications. In an attempt to circumvent some of these problems, we undertook the synthesis and the investigation of the photochemistry of benzo[2,3-g]quinoxalines, which are structurally similar to anthracenes. Surprisingly, the photochemical behaviour of these molecules has not been previously investigated. Upon irradiation, 2,3-diphenylbenzo[2,3-g]quinoxaline (DPBQ) and 2,3-di(2-dipyridyl)benzo[2,3-g]quinoxaline (DPyBQ) both underwent photodimerisation to yield di-DPBQ and di DPyBQ respectively. The head-to-tail structure of di-DPBQ was confirmed by X-ray crystallography. Preliminary studies suggested that the presence of ZnCl2 and Zn(OAc)2 reduced the yield of dimerisation of DPyBQ.
Download or read book CRC Handbook of Organic Photochemistry and Photobiology Third Edition Two Volume Set written by Axel Griesbeck and published by CRC Press. This book was released on 2019-04-05 with total page 1607 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only combined organic photochemistry and photobiology handbookAs spectroscopic, synthetic and biological tools become more and more sophisticated, photochemistry and photobiology are merging-making interdisciplinary research essential. Following in the footsteps of its bestselling predecessors, the CRC Handbook of Organic Photochemistry and Pho
Download or read book Heterocyclic N oxides written by Angelo Albini and published by Routledge. This book was released on 2019-01-22 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive presentation of all aspects of heterocyclic N-oxides. Topics discussed include the preparation of these compounds by N-oxidation of heterocycles and simultaneous synthesis of the ring and formation of the N-oxide group; general spectroscopic characteristics and molecular structure; and reactions and recently devel
Download or read book CRC Handbook of Organic Photochemistry and Photobiology written by Axel G. Griesbeck and published by CRC Press. This book was released on 2012 with total page 943 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title includes research from experts in organic chemistry & many other disciplines. There are sections on new terminology, the usefulness of particular reactions & experimental details.
Download or read book Photochemistry written by D Bryce-Smith and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes, for example, such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, each volume of Photochemistry comprises sections concerned with photophysical processes in condensed phases, organic aspects which are sub-divided by chromophore type, polymer photochemistry, and photochemical aspects of solar energy conversion. Volume 34 covers literature published from July 2001 to June 2002. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.
Download or read book Photochemical and photobiological activity of some 1 4 benzodia written by Petrus Johannes Gerardus Cornelissen and published by . This book was released on 1980 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Heterocyclic Chemistry written by Alan R. Katritzky and published by Elsevier. This book was released on 2010-08-24 with total page 1011 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterocyclic compounds play a vital role in the metabolism of living cells. Their practical applications range from extensive clinical use to fields as diverse as agriculture, photography, biocide formulation and polymer science. Written by leading scholars and industry experts, the Handbook of Heterocyclic Chemistry is thoroughly updated with over 50% new content. It has been rewritten with a new expanded author team, who have carefully distilled essential information on the reactivity, structure and synthesis of heterocycles from the 2008 major reference work Comprehensive Heterocyclic Chemistry III. To bring the work up to date the author team have also added new synthetic examples and structures, key applications and new references from 2008-2010. Contains more than 1500 clearly drawn structures and reactions. The highly systematic coverage given to the subject makes this one of the most authoritative single-volume accounts of modern heterocyclic chemistry available and should be useful reference for those teaching a heterocyclic course. - Covers the structure, reactivity and synthesis of all heterocyclic compounds as distilled from the larger 15-volume reference work - Saves researchers time when they require important information on heterocycles--speeding them to thousands of clearly drawn chemical structures and pertinent reviews by leading experts - Features 35% new material to compliment the completely revised text
Download or read book Photochemistry written by and published by . This book was released on 1982 with total page 590 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 Cumulated Index Medicus written by and published by . This book was released on 2000 with total page 1844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aqueous Mediated Synthesis written by Asit K. Chakraborti and published by Walter de Gruyter GmbH & Co KG. This book was released on 2024-02-19 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Chemical Papers written by Chemical Society (Great Britain) and published by . This book was released on 1969 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 1990 with total page 2210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bioinorganic Photochemistry written by Grazyna Stochel and published by John Wiley & Sons. This book was released on 2009-06-10 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioinorganic photochemistry is a rapidly evolving field integrating inorganic photochemistry with biological, medical and environmental sciences. The interactions of light with inorganic species in natural systems, and the applications in artificial systems of medical or environmental importance, form the basis of this challenging inter-disciplinary research area. Bioinorganic Photochemistry provides a comprehensive overview of the concepts and reactions fundamental to the field, illustrating important applications in biological, medical and environmental sciences. Topics covered include: Cosmic and environmental photochemistry Photochemistry of biologically relevant nanoassemblies Molecular aspects of photosynthesis Photoinduced electron transfer in biosystems Modern therapeutic strategies in photomedicine The book concludes with an outlook for the future of environmental protection, discussing emerging techniques in the field of pollution abatement, and the potential for bioinorganic photochemistry as a pathway to developing cheap, environmentally friendly sources of energy. Written as an authoritative guide for researchers involved in the development of bioinorganic photochemical processes, Bioinorganic Photochemistry is also accessible to scientists new to the field, and will be a key reference source for advanced courses in inorganic, and bioinorganic chemistry.
Download or read book Journal of the American Chemical Society written by American Chemical Society and published by . This book was released on 1959 with total page 1886 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Society are included in v. 1-59, 1879-1937.
Download or read book Research Awards Index written by and published by . This book was released on with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and published by . This book was released on 1974 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
