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This book highlights the promising photocatalytic methods for synthesizing organic chemicals by simultaneously degrading the toxicity of raw substances used for organic synthesis. It presents various semiconducting materials with high catalytic activities in hydrogen evolution reactions (HERs) and hydrogenation reactions, as well as the material characterizations for identifying semiconductor photocatalysts. The focus is on understanding the hydrogen dissociation and activation of substances in the process of hydrogenation and the fabrication of nanostructured catalysts with desired activity and selectivity. Recent works show photocatalytic hydrogenation reactions with in situ generated H+ on catalyst surfaces utilizing initial chemicals such as nitrophenol, nitrobenzene, azobenzene, and benzene for valorization. In addition, the photocatalytic valorization of waste glycerol is also discussed. Besides the hydrogenation reactions, the reduction of oxygen to form H2O2 can be done with a photocatalytic method in atmospheric conditions. Some related perspectives and outlooks are also discussed for possible future development.
Heterogeneous catalysis. --- Materials. --- Catalysis. --- Nanoscience. --- Photocatalysis. --- Heterogeneneous Catalysis. --- Nanophysics. --- Metal-organic Frameworks.
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This book provides researchers in the fields of organic chemistry, organometallic chemistry and homogeneous catalysis with an overview of recent developments in the applications of reactions involving carbene and nitrene intermediates directed to the synthesis of heterocyclic compounds. Multiple pathways through which diverse heterocyclic compounds are accessed occur from a variety of carbene and nitrene precursors through C-H/X-H insertions, cycloadditions, ylide transformations, rearrangements, and cascade reactions. Catalytic processes that form metallo-carbenes and nitrenes offer unparalleled chemo-, regio-, and stereo-selectivities. Insights are provided into the scope of these methodologies and the inherent control of catalyst ligands on reaction selectivities.
Chemistry. --- Chemistry, Organic. --- Heterogeneous catalysis. --- Materials. --- Chemical Synthesis. --- Organic Chemistry. --- Heterogeneneous Catalysis. --- Engineering --- Engineering materials --- Industrial materials --- Engineering design --- Manufacturing processes --- Catalysis --- Organic chemistry --- Chemistry --- Physical sciences --- Materials --- Carbenes (Methylene compounds) --- Heterocyclic compounds.
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