Selective oxidative homo- and cross-coupling of phenols with aerobic catalysts.
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Simple catalysts that use atom-economical oxygen as the terminal oxidant to accomplish selective ortho–ortho, ortho-para, or para–para homo-couplings of phenols are described.Abstract:
Simple catalysts that use atom-economical oxygen as the terminal oxidant to accomplish selective ortho–ortho, ortho–para, or para–para homo-couplings of phenols are described. In addition, chromium salen catalysts have been discovered as uniquely effective in the cross-coupling of different phenols with high chemo- and regioselectivity.read more
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Oxidative Coupling between Two Hydrocarbons: An Update of Recent C–H Functionalizations
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Mn-Catalyzed Highly Efficient Aerobic Oxidative Hydroxyazidation of Olefins: A Direct Approach to β-Azido Alcohols
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Synthetic Applications of Oxidative Aromatic Coupling – from Biphenols to Nanographenes
TL;DR: Analysis of the progress achieved in this field since 2013 reveals that many groups have contributed by pushing the boundary of structural possibilities, expanding into surface‐assisted (cyclo)dehydrogenation, and developing new reagents.
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Source of Selectivity in Oxidative Cross‐Coupling of Aryls by Solvent Effect of 1,1,1,3,3,3‐Hexafluoropropan‐2‐ol
Bernd Elsler,Anton Wiebe,Dieter Schollmeyer,Katrin Marie Dyballa,Robert Franke,Robert Franke,Siegfried R. Waldvogel +6 more
TL;DR: The addition of water or methanol to the electrolyte allows a shift of oxidation potentials in a specific range, creating suitable systems for selective anodic cross-coupling reactions, and this driving force for selectivity in oxidative coupling might also explain previous findings using HFIP and hypervalent iodine reagents.
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Reagent‐ and Metal‐Free Anodic C−C Cross‐Coupling of Aniline Derivatives
Lara Schulz,Enders Mathias,Bernd Elsler,Dieter Schollmeyer,Katrin Marie Dyballa,Robert Franke,Siegfried R. Waldvogel +6 more
TL;DR: The dehydrogenative cross-coupling of aniline derivatives to 2,2'-diaminobiaryls is reported, carried out electrochemically, which avoids the use of metals and reagents and provides quick and efficient access to important building blocks featuring free amine moieties.
References
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Metal–Salen Schiff base complexes in catalysis: practical aspects
TL;DR: Practical guidelines for the preparation and use of different Schiff base metal complexes in the field of catalytic transformations are discussed in this tutorial review.
Book
Comprehensive organic synthesis
Paul Knochel,Gary A. Molander +1 more
TL;DR: Synthetic chemists requiring the essential facts in new areas, as well as students completely new to the field, will find "Comprehensive Organic Synthesis, Second Edition" an invaluable source, providing an authoritative overview of core concepts.
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Aerobic Copper-Catalyzed Organic Reactions
TL;DR: The chemistry of copper is extremely rich because it can easily access Cu0, CuI, CuII, and CuIII oxidation states allowing it to act through one-electron or two-Electron processes, which feature confer a remarkably broad range of activities allowing copper to catalyze the oxidation and oxidative union of many substrates.
Journal ArticleDOI
Atroposelective total synthesis of axially chiral biaryl natural products.
TL;DR: Gerhard Bringmann's research interests focus on the field of analytical, synthetic, and computational natural product chemistry, i.e., on axially chiral biaryls, which is characterized by a broad structural diversity.