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2022
Organic photoredox catalysis is a powerful light-driven synthetic technology enabling the development of a diverse number of organic free radical reactions. It has had a substantial impact on organic synthesis, materials science and pharmaceutical chemistry and will be an essential method for looking at future research developments.
Hans-Achim Wagenknecht, Todd Hyster
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Organic photoredox catalysis is a powerful light-driven synthetic technology enabling the development of a diverse number of organic free radical reactions. It has had a substantial impact on organic synthesis, materials science and pharmaceutical chemistry and will be an essential method for looking at future research developments.
Hans-Achim Wagenknecht, Todd Hyster
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Aromatic Chlorosulfonylation by Photoredox Catalysis
ChemSusChem, 2016AbstractVisible‐light photoredox catalysis enables the efficient synthesis of arenesulfonyl chlorides from anilines. The new protocol involves the convenient in situ preparation of arenediazonium salts (from anilines) and the reactive gases SO2 and HCl (from aqueous SOCl2).
Michal Májek +2 more
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Perspectives for Uranyl Photoredox Catalysis
Synlett, 2021AbstractThe application of uranyl salts as powerful photoredox catalysts in chemical transformations lags behind the advances achieved in thermocatalysis and structural chemistry. In fact, uranyl cations (UO2 2+) have proven to be ideal photoredox catalysts in visible-light-driven chemical reactions.
Xuefeng Jiang, Deqing Hu
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Low-energy photoredox catalysis
Nature Reviews ChemistryWith the advent of photoredox catalysis, new synthetic paradigms have been established with many novel transformations being achieved. Nevertheless, modern photoredox chemistry has several drawbacks, namely, deficiencies in reaction efficiency and scalability.
David C. Cabanero, Tomislav Rovis
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The forgotten reagent of photoredox catalysis
Dalton Transactions, 2022Light is a critical reagent in photochemical synthesis but rarely considered beyond on or off controls. This Frontier article highlights recent examples where photon delivery is controlled, affording unique reactivity.
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Indole Functionalization via Photoredox Gold Catalysis
Organic Letters, 2015The use of photoredox catalyst [Au2(dppm)2]Cl2 to initiate free-radical cyclizations onto indoles is reported. Excitation of the dimeric Au(I) photocatalyst for the reduction of unactivated bromoalkanes and bromoarenes is used for the generation of carbon-centered radicals.
Sherif J, Kaldas +3 more
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Metal‐Free Carbonylations by Photoredox Catalysis
Angewandte Chemie International Edition, 2014AbstractThe synthesis of benzoates from aryl electrophiles and carbon monoxide is a prime example of a transition‐metal‐catalyzed carbonylation reaction which is widely applied in research and industrial processes. Such reactions proceed in the presence of Pd or Ni catalysts, suitable ligands, and stoichiometric bases.
Michal, Majek, Axel, Jacobi von Wangelin
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Generating carbyne equivalents with photoredox catalysis
Nature, 2018Carbon has the unique ability to bind four atoms and form stable tetravalent structures that are prevalent in nature. The lack of one or two valences leads to a set of species-carbocations, carbanions, radicals and carbenes-that is fundamental to our understanding of chemical reactivity.
Zhaofeng, Wang +3 more
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Decarboxylative Oxygenation via Photoredox Catalysis
Israel Journal of Chemistry, 2019AbstractThe direct conversion of aliphatic carboxylic acids to their dehomologated carbonyl analogues has been accomplished through photocatalytic decarboxylative oxygenation. This transformation is applicable to an array of carboxylic acid motifs, producing ketones, aldehydes, and amides in excellent yields.
Tomer M. Faraggi +2 more
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Photoredox Catalysis for Organic Syntheses
Advanced Synthesis & Catalysis, 2013AbstractCurrent examples of photoredox catalytic processes for CO, CN, CHal and CC bond formation are described with emphasis on the basic mechanistic scenarios. The focus is on the special aspects of photochemical redox catalysis especially on the electron transfer energetics, the use of electron transfer (ET) sensitizers and mediators as well as ...
Melissa Reckenthäler, Axel G. Griesbeck
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