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Nitroxides: applications in synthesis and in polymer chemistry.
TLDR
Alkoxyamines derived from nitroxides are shown to be highly useful precursors of C-centered radicals in synthesis and also in polymer chemistry, and new developments in the synthesis of complex polymer architectures are highlighted.
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Nitroxide-catalyzed transition-metal-free aerobic oxidation processes
Advances in the field of transition-metal-free nitroxide-catalyzed aerobic oxidation processes are covered in this critical review. Along with the relevant physical properties of nitroxides, their…
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Oxidative amidation and azidation of aldehydes by NHC catalysis.
N-heterocyclic carbene catalyzed oxidative amidations of various aldehydes to the corresponding hexafluoroisopropylesters by using the readily available organic oxidant A are described. The…
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Hindered biaryls by C–H coupling: bisoxazoline-Pd catalysis leading to enantioselective C–H coupling
TLDR
The newly established Pd(OAc)2/bisoxazoline/TEMPO system not only enables the synthesis of sterically hindered heterobiaryls but also offers an opportunity for enantioselective biaryl coupling through C–H functionalization.
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Oxidative biaryl coupling of thiophenes and thiazoles with arylboronic acids through palladium catalysis: otherwise difficult C4-selective C-H arylation enabled by boronic acids.
TLDR
It is reported that the Pd-catalyzed oxidative C H arylation of thiophenes and thiazoles with arylboronic acids manifests the otherwise difficult C4 regioselectivity.
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Fluorous Synthesis: A Fluorous-Phase Strategy for Improving Separation Efficiency in Organic Synthesis
TLDR
Because fluorous synthesis combines in many respects the favorable purification features of solid-phase synthesis with the favorable reaction, identification, and analysis features of traditional organic synthesis, it should prove valuable in the automated synthesis of libraries of individual pure organic compounds.
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Tin-free radical chemistry using the persistent radical effect: alkoxyamine isomerization, addition reactions and polymerizations.
  • A. Studer
  • Chemistry
    Chemical Society reviews
  • 8 June 2004
TLDR
In this tutorial review applications of alkoxyamines as C-radical precursors for the conduction of tin-free radical reactions are presented and the use of microwave irradiation to conduct thermal radical reactions is discussed.
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Asymmetric synthesis of highly substituted β-lactones through oxidative carbene catalysis with LiCl as cooperative Lewis acid.
The reaction of enals with β-diketones, β-ketoesters, and malonates bearing a β-oxyalkyl substituent at the α-position by oxidative NHC catalysis to provide highly substituted β-lactones is…
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NHC catalyzed oxidations of aldehydes to esters: chemoselective acylation of alcohols in presence of amines.
Not just one but two carbenes of the same structure act cooperatively in oxidative acylations of alcohols with aldehydes by using a readily available cheap organic oxidant. Alcohols are selectively…
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Structural Requirements for Optimized Delivery, Inhibition of Oxidative Stress, and Antiapoptotic Activity of Targeted Nitroxides
TLDR
Using a model of ActD-induced apoptosis in mouse embryonic cells, a library of nitroxides is screened to explore structure-activity relationships between their antioxidant/antiapoptotic properties and chemical composition and three-dimensional (3D) structure and it is established that the presence of the β-turn/β-sheet secondary structure is essential for the desired activity.
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