Download or read book Organic Peroxygen Chemistry written by Wolfgang A. Herrmann and published by Springer. This book was released on 2014-03-12 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Peroxygen Chemistry written by Wolfgang A. Herrmann and published by Springer. This book was released on 1993-03-05 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. H. Heaney: Novel Organic Peroxygen Reagents for Use in Organic Synthesis 2. R. Sheldon: Homogeneous and Heterogeneous Catalytic Oxidations with Peroxide Reagents 3. W. Adam, L. Hadjiarapoglou: Oxidation Chemistry Made Easy 4. E. H]ft: Enantioselective Epoxidation with Peroxidic Oxygen 5. S. Warwel, M. Sojka, M. R}sch gen. Klaas: Synthesis of Dicarboxylic Acids by Transition-Metal Catalyzed Oxidative Cleavage of Terminal-Unsaturated Fatty Acids 6. J. Fossey, J. Sorba, D.Lefort: Peracide and Free Radicals: A Theoretical and Experimental Approach 7. K. Dear: Cleaning-up Oxidations with Hydrogen Peroxide
Download or read book Hydrogen Peroxide in Organic Chemistry written by John G. Wallace and published by . This book was released on 1962 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Determination of Organic Peroxides written by R. M. Johnson and published by Elsevier. This book was released on 2013-10-22 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monographs in Organic Functional Group Analysis, Volume 4: The Determination of Organic Peroxides focuses on the analytical chemistry of organic peroxides. The monograph first offers information on the compositions, properties, and reactions of lipid peroxides, polymers, and petrochemicals. The text then reviews the iodometric methods, including choice of solvents, reaction conditions, and titration with thiosulfate. The ferrous ion methods are also discussed. Considerations include choice of reagents and solvents and titration with titanous, dichromate, and mercurous ions. The book also focuses on titrimetric methods, including arsenious, stannous, and titanous methods, titration with anions, and sulfides and mercaptans. Numerical representations are provided. The text puts emphasis on colorimetric and polarographic methods. Polarographic techniques for peroxides; nature and concentration of peroxides; leuco base of methylene blue; and ferrous ions are described. The book also discusses paper, thin-layer, and gas chromatography. The monograph is an important guide for readers interested in the analytical chemistry of organic peroxides.
Download or read book Active Oxygen in Chemistry written by Christopher S. Foote and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking an interdisciplinary approach, this book and its counterpart, Active Oxygen in Biochemistry, explore the active research area of the chemistry and biochemistry of oxygen. Complementary but independent, the two volumes integrate subject areas including medicine, biology, chemistry, engineering, and environmental studies.
Download or read book Applications of Hydrogen Peroxide and Derivatives written by C W Jones and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simple, but beautifully versatile. Perhaps not a description many would choose for hydrogen peroxide, but an accurate one none the less, and this unique book explains the reasons behind the description. Beginning with an historical overview, and guidelines for the safe handling of peroxygens, Applications of Hydrogen Peroxide and Derivatives goes on to cover key activation mechanisms, organic functional group oxidations and the use of hydrogen peroxide with heterogeneous catalysts. The clean-up of environmental pollutants; chemical purification; and extraction of metals from their ores are also discussed in detail, using actual examples from industry. The versatility of this reagent may well prove to be a key to integrated pollution control in the future. This book should therefore be read by academics and industrialists at all levels, to encourage wider applications of the use of hydrogen peroxide in laboratories.
Download or read book Catalytic Oxidations with Hydrogen Peroxide as Oxidant written by G. Strukul and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen peroxide is a chemical that is becoming increasingly fashionable as an oxidant, both in industry and in academia and whose production is expected to increase significantly in the next few years. This growth in interest is largely due to environmental considerations related to the clean nature of hydrogen peroxide as an oxidant, its by-product being only water. To date this chemical has largely been employed as a non-selective oxidant in operations like the bleaching of paper, cellulose and textiles, or in the formulation of detergents, and only to a minimal extent in the manufacture of organic chemicals. This book has been organized to cover the different aspects of the chemistry of hydrogen peroxide. The various chapters into which the book is divided have been written critically by the authors with the general aim of stimulating new ideas and emphasizing those aspects that are likely to lead to new developments in organic synthesis in the coming future.
Download or read book The Chemistry of Peroxides written by Zvi Rappoport and published by . This book was released on 2006 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book HYDROGEN PEROXIDE IN ORGANIC CHEMISTRY written by JG. WALLACE and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxidation and Antioxidants in Organic Chemistry and Biology written by Evgeny T. Denisov and published by CRC Press. This book was released on 2005-03-29 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a comprehensive review of reactions of oxidation for different classes of organic compounds and polymers, and biological processes mediated by free radicals, Oxidation and Antioxidants in Organic Chemistry and Biology puts the data and bibliographical information you need into one easy-to-use resource. You will find up-to-date information
Download or read book Hydrogen Peroxide written by Walter Cecil Schumb and published by . This book was released on 1955 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Oxygen written by E. A. V. Ebsworth and published by Elsevier. This book was released on 2016-06-06 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chemistry of Oxygen deals with the chemistry of oxygen and covers topics ranging from atoms and ions to oxides, water, and oxygen fluorides. Hydrogen peroxide, peroxides and related compounds, and ozone and related species are also discussed, along with other species containing O3 and O4 groups. This book is comprised of nine chapters and opens with a historical background on oxygen, including its discovery, as well as its properties, isotopes, occurrence and extraction, toxic effects, and production and uses. The next chapter is devoted to oxygen atoms and ions, with emphasis on the reactions of ionized species derived from oxygen atoms and molecules. The reader is then introduced to oxides and their acid-base character, structure, allotropy, thermodynamics, and geometrical effects; physical and chemical properties of water; chemical and physical properties of oxygen fluorides; and hydrogen peroxide, its properties, molecular structure, and uses. Subsequent chapters focus on peroxides and related compounds; ozone and related species; and other species containing O3 and O4 groups. This monograph will be a valuable source of information for inorganic chemists.
Download or read book Organic electronic materials for hydrogen peroxide production written by Maciej Gryszel and published by Linköping University Electronic Press. This book was released on 2020-02-25 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen peroxide (H2O2) is an important oxidant, used in various fields of industry, such as paper manufacturing, production of polymers, detergents, and cosmetics. Considering that the molecule degrades only to H2O and O2, it is regarded as a green chemical. Unfortunately, the incumbent method of H2O2 synthesis, based on anthraquinone oxidation, although efficient, is not environmentally friendly, as it requires fossil fuels and significant energy input. Therefore, there are efforts underway to reduce the ecological impact of hydrogen peroxide production. Some of the most promising approaches involve catalytic reduction of O2 to H2O2 in an aqueous environment. This can be coupled with water oxidation. As the required energy could be delivered in different ways, hydrogen peroxide synthesis can be achieved by electrocatalysis, photoelectrocatalysis, or photocatalysis. This thesis explores the possibility of using organic electronic materials as catalysts for H2O2 evolution in oxygenated water solutions. Organic electronics is a field of materials science focused on conducting and semiconducting organic molecules. These materials offer many possible advantages, related to low cost, flexibility, and good optoelectronic properties. Huge progress in the field over the last years led to their commercial applications in e.g. organic light emitting diodes and photovoltaics. Only very recently have organic electronics begun to be considered from the point of view of catalysis. In the first two papers, we investigate electrocatalytic activity of an organic pigment (PTCDI) and a conducting polymer (PEDOT) towards oxygen reduction to hydrogen peroxide. Both types of catalysts are chemically stable and able to operate in a wide pH range. In paper 3, we demonstrate that H2O2-evolving photocathodes can be based on an organic PN heterojunction, giving devices of a record-breaking performance. In the first part of paper 4, the same concept was tested for a naturally-occurring semiconductor, eumelanin, leading to a first report of photoelectrocatalytic properties of this material. In the second part of paper 4, as well as in papers 5 and 6, we explore, respectively, photochemical hydrogen peroxide synthesis with eumelanin, organic semiconductors, and organic dyes. We show that the photostability of catalysts is higher for materials with low-lying HOMO level and it can be increased by an addition of a reducing agent to the reaction system. Our findings prove that already existing organic electronic materials can be successfully applied in H2O2 evolution for environmentally friendly chemical synthesis, suggesting their use in harvesting of solar energy and in situ generation of hydrogen peroxide for biomedical applications. Väteperoxid (H2O2) är en viktig oxidant som används inom olika industrier, såsom papperstillverkning och produktion av polymerer, tvättmedel och kosmetika. Med tanke på att molekylen bryts ner till vatten (H2O) och syre (O2) betraktas den som en grön kemikalie. Tyvärr är den befintliga metoden för framställning av H2O2 baserad på oxidation av en antrakinon, en metod som är effektiv, men inte miljövänlig eftersom den kräver fossila bränslen och betydande energitillförsel. Det pågår därför ansträngningar för att minska den ekologiska effekten av väteperoxidproduktionen. Några av de mest lovande metoderna involverar katalytisk O2 till H2O2-reduktion i vattenlösning, kombinerat med vattenoxidation. Eftersom den nödvändiga energin kan levereras på olika sätt kan väteperoxidsyntesen uppnås genom elektrokatalys, fotoelektrokatalys eller fotokatalys. Denna avhandling undersöker möjligheten att använda organiska elektroniska material som katalysatorer för framställning av H2O2i syresatta vattenlösningar. Organisk elektronik är ett område inom materialvetenskap med fokus på ledande och halvledande organiska molekyler. Dessa material erbjuder många fördelar, såsom låg kostnad, flexibilitet och goda optoelektroniska egenskaper. Enorma framsteg på området har under de senaste åren lett till deras kommersiella tillämpningar i till exempel organiska ljusemitterande dioder och fotovoltaik. Nyligen har också organisk elektronik börjat övervägas ur katalysens synvinkel. I de två första artiklarna undersöker vi en elektrokatalytisk aktivitet av ett organiskt pigment (PTCDI) och en ledande polymer (PEDOT) i respekt till syrereduktion och väteperoxidproduktion. Båda typerna av katalysatorer är kemiskt stabila och kan arbeta inom ett brett pH-område. I artikel 3 visar vi att H2O2-producerande fotokatoder kan baseras på en organisk PN-gränsyta, vilket ger enheter med en rekordbrytande kapacitet. I den första delen av artikel 4 testades samma koncept för en naturligt förekommande halvledare, eumelanin, vilket ledde till en första rapport om fotoelektrokatalytiska egenskaper hos detta material. I den andra delen av artikel 4, samt i artikel 5 och 6, undersöker vi fotokemisk väteperoxidsyntes med eumelanin, organiska halvledare och organiska färgämnen. Vi visar att fotostabiliteten hos katalysatorer är högre för material med lågt liggande HOMO-nivå och att den kan ökas genom en tillsats av ett reduktionsmedel till reaktionssystemet. Våra fynd visar att redan befintliga organiska elektroniska material framgångsrikt kan tillämpas i H2O2-utvecklingen för miljövänlig kemisk syntes, vilket antyder att de kan användas för att ta tillvara på solenergi och för produktion av väteperoxid inom biomedicin.
Download or read book Organic Chemistry with Hydrogen Peroxide and Layered Double Hydroxides Exchanged with Tungstate and Molybdate Anions written by Bert F. Sels and published by . This book was released on 2000 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Peroxide Chemistry written by Deutsche Forschungsgemeinschaft and published by Wiley-VCH. This book was released on 2000 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of thirty articles on research projects in all areas of peroxide chemistry, i. e. analytical, biochemical, inorganic, organic, organometallic, physical, spectroscopic, and theoretical facets, are the result of a multidisciplinary research program funded by the Deutsche Forschungsgemeinschaft (DFG). The emphasis was to lie on the development of environmentally acceptable, selective (chemo-, regio-, diastereo- and enantioselectivity) oxidations. One chapter focuses on industrial applications which have to meet both economical and ecological demands to remain competitive in the future. Latest results on the consequences of lipid peroxidation in age-dependent diseases, which range from Alzheimer and Parkinson disorders to diabetes, rheumatic arthritis, atherosclerosis and cardiovascular diseases are also presented.
Download or read book Photobiogeochemistry of Organic Matter written by Khan M.G. Mostofa and published by Springer Science & Business Media. This book was released on 2012-12-15 with total page 919 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photoinduced processes, caused by natural sunlight, are key functions for sustaining all living organisms through production and transformation of organic matter (OM) in the biosphere. Production of hydrogen peroxide (H2O2) from OM is a primary step of photoinduced processes, because H2O2 acts as strong reductant and oxidant. It is potentially important in many aquatic reactions, also in association with photosynthesis. Allochthonous and autochthonous dissolved organic matter (DOM) can be involved into several photoinduced or biological processes. DOM subsequently undergoes several physical, chemical, photoinduced and biological processes, which can be affected by global warming. This book is uniquely structured to overview some vital issues, such as: DOM; H2O2 and ROOH; HO•; Degradation of DOM; CDOM, FDOM; Photosynthesis; Chlorophyll; Metal complexation, and Global warming, as well as their mutual interrelationships, based on updated scientific results.
Download or read book Free Radicals in Organic Synthesis written by David Ian Davies and published by Springer. This book was released on 1978 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
