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Metal-free Photocatalysts for the C-H Bond Oxygenation Reactions Using Oxygen as the Oxidant.

08:00 EDT 1st April 2019 | BioPortfolio

Summary of "Metal-free Photocatalysts for the C-H Bond Oxygenation Reactions Using Oxygen as the Oxidant."

Direct and selective oxygenation of C-H bonds to C-O bonds is regarded as an effective and atom-economic tool to generate high-valued products. However, these reactions are still associated with challenges such as harsh reaction conditions, use of expensive transition metal catalysts and use of stoichiometric oxidants. To avoid these, molecular oxygen will be ideal as an oxidant. Additionally, if these reactions can be achieved using metal-free catalysts, should contribute to the green and sustainable movement in chemical synthesis. Based on these, we have summarized recent reports for the C-H bond oxygenation reactions using metal-free catalysts.

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Name: ChemSusChem
ISSN: 1864-564X
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Widely distributed enzymes that carry out oxidation-reduction reactions in which one atom of the oxygen molecule is incorporated into the organic substrate; the other oxygen atom is reduced and combined with hydrogen ions to form water. They are also known as monooxygenases or hydroxylases. These reactions require two substrates as reductants for each of the two oxygen atoms. There are different classes of monooxygenases depending on the type of hydrogen-providing cosubstrate (COENZYMES) required in the mixed-function oxidation.

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Enzymes that catalyze the cleavage of a carbon-oxygen bond by means other than hydrolysis or oxidation. EC 4.2.

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