Oxidation of alcohols

Ebook "Biotransformations in organic chemistry: A textbook (7th edition)" have been introduced which include alcohol and amine oxidases, amine dehydrogenases, imine reductases, haloalkane dehalogenases, ATP-independent phosphorylation, Michael-additions and cascade reactions. This new edition also emphasizes the use of enzymes in industrial biotransformations with practical examples.

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Part 2 book "Chemistry" by author Catherine E. Housecroft includes content: Equilibria, thermodynamics, electrochemistry, the conductivity of ions in solution, periodicity hydrogen and the s-block elements, p-Block and high oxidation state d-block elements, coordination complexes of the d-block metals, carbon compounds - an introduction, acyclic and cyclic alkanes, alkenes and alkynes, polar organic molecules - an introduction, halogenoalkanes, ethers, alcohols.

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Ebook "Polyoxomolybdates as green catalysts for aerobic oxidation" describes the importance of the selective oxidation of alcohols and advantages of heterogeneous catalysts over conventional catalysts, use of environmentally benign oxidants, and the design of selective catalysts by tailoring of polyoxometalates at the molecular level. Chapter 2 describes synthesis, characterization 11-molybdophosphate based supported materials and their use as heterogeneous catalysts for oxidation of alcohols with molecular oxygen under solvent free mild reaction condition.

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Ebook "Direct alcohol fuel cells: Materials, performance, durability and applications" begins with an introductory overview of direct alcohol fuel cells (DAFC); it focuses on the main goals and challenges in the areas of materials development, performance, and commercialization. The preparation and the properties of the anodic catalysts used for the oxidation of methanol, higher alcohols, and alcohol tolerant cathodes are then described.

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Ebook "Specific intermolecular interactions of organic compounds" presents the development of the thermodynamic theory of specific intermolecular interactions for a wide spectrum of organic compounds: ethers, ketones, alcohols, carboxylic acids, and hydrocarbons. The fundamentals of an unconventional approach to the theory of H-bonding and specific interactions are formulated based on a concept of pentacoordinate carbon atoms.

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Ebook "Biomass processing over gold catalysts" describes the valorization of biomass-derived compounds over gold catalysts. Since biomass is a rich renewable feedstock for diverse platform molecules, including those currently derived from petroleum, the interest in various transformation routes has become intense. Catalytic conversion of biomass is one of the main approaches to improving the economic viability of biorefineries.

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Ebook "Fuel cells and hydrogen storage (Structure and bonding, Volume 141)" brings together recent developments in the science and technology of fuel cells. The role of local structural effects and chemical bonding in the electrochemical performance of the new materials is discussed in detail. This work relies heavily on the use of quantitative differential electrochemical mass spectrometry (DEMS) for studying the mechanism of methanol electro-oxidation on platinum and platinum/ruthenium catalysts.

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In this study, the objective was the investigation of the thermo-oxidative destruction of PVAcrosslinked-FDCA by simultaneous TGA/DTGA analysis. And the formation of ester crosslinks between PVA and FDCA was analyzed using Attenuated Total Reflection-Fourier transform infrared spectroscopy (ATR-FTIR).

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The Urea-Hydrogen Peroxide complex was synthesized from urea, hydrogen peroxide by using microwave assisted method and characterized by FT-IR. This Urea-Hydrogen Peroxide complex could be employed as an oxidizing agent for metal-free oxidation reaction of benzylic alcohols to carboxylic acids corresponding.

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Two copper phyllosilicates were prepared via co-precipitation accompanied by hydrothermal treatment at pH constant. The obtained materials were physically characterized by XRD, H2-TPR, TEM, BET and XPS techniques. The results indicated that Cu(II) ions were successfully intercalated into the phyllosilicate framework at a low Cu/Si molar ratio.

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Worldwide petroleum reserves are decreasing rapidly; therefore, looking for sustainable and renewable energy is currently one of the targets of scientists. Biodiesel which can satisfy these requirements is synthesized by the transesterification of plant/animal oil with alcohols, typically methanol, catalyzed by acid or base.

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A series of CMK-3-like carbon replicas was synthesized by precipitation polycondensation of furfuryl alcohol in an aqueous slurry of SBA-15 at a polymer/SiO2 mass ratio of 0.50–2.00. Changes in textural and structural parameters of SBA-15 after polymer deposition were studied by N2 adsorption and X-ray diffraction.

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Phosphatidylethanols (PEths) are specific, direct alcohol biomarkers with a substantially longer half-life than ethanol, and can be used to distinguish between heavy- and social drinking. More than forty PEth homologues have been detected in blood from heavy drinkers, and PEth 16:0/18:1 is the predominant one.

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Anti-oxidative stress characters of extract was evaluated in liver and kidney antioxidant enzyme activities; catalase, superoxide dismutase, glutathione reductase, glutathione-S-transferase and glutathione peroxidase which were magnified in parallel with remarkable elevation on glutathione concentration comparable with diabetic control.

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A 1:1:1 stoichiometric reaction between CrO3, aqueous HF, and quinaldine affords orange crystalline quinaldinium fluorochromate(VI) (QnFC)(C10H9NH[CrO3F]) in 99.4% isolated yield. A highly efficient, simple, chemoselective, and environmentally benign procedure for QnFC (3 mol%) catalyzed oxidation of primary and secondary alcohols to aldehydes and ketones using 1.1 equiv of H5IO6 under solvent-free conditions is described.

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A complete liquid phase technology and a function regulator were applied to prepare CuZnAl catalysts for higher alcohol synthesis. Characterizations showed that the introduction of the function regulator can change the reduction ability of copper oxides and the surface basicity of catalysts. Activity tests indicated that the selectivity of higher alcohol is high when considerable medium-strong basicity and the synergistic effects of copper ion and metal copper exist on the catalytic surface.

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The surface of mesocellular silica foam (MCF) was modified by grafting 3-aminopropyl-triethoxysilane (APTES) to have a positive charge, and thus to provide sites for the immobilization of H3PW12O40(PW12). This modified nanosized mesoporous silica (PW12-APTES@MCF) was characterized by FTIR, XRD, BET, and TEM. XRD and adsorption–desorption analysis shows that the mesostructure of silica remains intact after various modifications, while the spectral technique shows the successful grafting of the neat PW12 inside the porous silica support.

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Esterification of organic acids with alcohols under mild conditions in high yields using graphite oxide, a readily available and inexpensive material, as an effective reagent is described. Esters are a class of compounds widely distributed in nature. Esters encompass a large family of organic compounds with broad applications in medicine, biology, chemistry, and industry as plasticizers, solvents, perfumes, and flavor chemicals and also as precursors for a gamut of pharmaceuticals, agrochemicals, and other fine chemicals.

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Graphite oxide as a heterogeneous and recyclable solid acid catalyzed a simple and efficient method for the synthesis of β-amino alcohols by ring opening of epoxides with amines. This method is effective with various aromatic and aliphatic amines under solvent-free conditions. The corresponding β-amino alcohols are obtained in high yields (56%–95%) and short reaction times (15–30 min) with high regio- and chemoselectivity under metal-free conditions.

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Preparation of benzaldehyde by Swern oxidation of benzyl alcohol was carried out in a continuous flow microreactor system. Dimethyl sulfoxide (Me2SO) was used as oxidizing agent and oxalyl chloride or p-toluenesulfonyl (p-TsCl) chloride was used as the activating agent. Benzyl alcohol was oxidized to benzaldehyde by the Me2SO activating agent mixture in the continuous flow microreactor system. The optimized reaction conditions of the Swern oxidation were as follows: oxalyl chloride was used as the activating agent; the mole ratio of Me2SO, oxalyl chloride, and benzyl alcohol was 4:2:1.

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