Results 31 to 40 of about 33,950 (227)
A cooperative Pd-Cu system for direct C-H bond arylation [PDF]
, 2014 The authors are grateful to the Royal Society (University Research Fellowship to CSJC) for financial support.A novel and efficient method for C-H arylation using well-defined Pd- and Cu-NHC systems has been developed.
Cazin, Catherine S. J. +2 more
core +1 more source
Alkoxysulfonium Salts Unlock Access to New Aryl Sulfonium Salts for Cross‐Coupling
Angewandte Chemie, EarlyView.Hard‐to‐access (hetero)aryl sulfonium salts are prepared using stable methoxysulfonium salts in combination with the magnesiation of (hetero)aryl bromides. The approach allows access to aryl sulfonium salts bearing electron‐deficient (hetero)aryl rings, or electron‐rich aryl motifs in which the sulfonium motif resides at an alternative position on the ...
Rachel E. Brown +4 more
wiley +2 more sources
Confirming the existence of π-allyl-palladium intermediates during the reaction of meta photocycloadducts with palladium(ii) compounds [PDF]
, 2000 The transient existence of π-allyl-palladium intermediates formed by the reaction of Pd(OAc)2 and anisole-derived meta photocycloadducts has been demonstrated using NMR techniques.
Penkett, Clive S +3 more
core +3 more sources
Palladium-Catalyzed α-Arylation of Aryl Nitromethanes
Organic Letters, 2015 Catalytic conditions for the α-arylation of aryl nitromethanes have been discovered using parallel microscale experimentation, despite two prior reports of the lack of reactivity of these aryl nitromethane precursors. The method efficiently provides a variety of substituted, isolable diaryl nitromethanes.
VanGelder, Kelsey F. +1 more
openaire +2 more sources
Angewandte Chemie, EarlyView.This minireview highlights recent advances in catalyst development and mechanistic strategies that enable photochemical and photocatalytic reactivity under 700–1000 nm NIR light, emphasizing how long‐wavelength excitation expands opportunities in both synthetic chemistry and biology.
Santosh K. Pagire +3 more
wiley +2 more sources
Heck Transformations of Biological Compounds Catalyzed by Phosphine-Free Palladium
Molecules, 2018 The development and optimization of synthetic methods leading to functionalized biologically active compounds is described. Two alternative pathways based on Heck-type reactions, employing iodobenzene or phenylboronic acid, were elaborated for the ...
Stanisława Tarnowicz-Ligus +1 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2020 An efficient synthesis of tetrabenzo[a,d,j,m]coronene derivatives having alkyl and alkoxy substituents at the 3, 6, 13, and 16-positions was achieved based on the ruthenium-catalyzed coupling reactions of anthraquinone derivatives with arylboronates via ...
Seiya Terai +3 more
doaj +1 more source
Copper-Catalyzed Synthesis of Axially Chiral Biaryls with Diaryliodonium Salts as Arylation Reagents
Molecules, 2021 NOBIN and BINAM derivatives harboring biaryl frameworks are recognized as a class of important atropisomers with versatile applications. Here, we present an efficient synthetic route to access such compounds through copper-catalyzed domino arylation of N-
Ji-Wei Zhang +3 more
doaj +1 more source
Aryl-, Akynyl-, and Alkenylbenziodoxoles: Synthesis and Synthetic Applications
Molecules, 2023 Hypervalent iodine reagents are in high current demand due to their exceptional reactivity in oxidative transformations, as well as in diverse umpolung functionalization reactions.
Irina A. Mironova +4 more
doaj +1 more source
Synthesis of Solution-Phase Phosphoramidite and Phosphite Ligand Libraries and Their In Situ Screening in the Rhodium-Catalyzed Asymmetric Addition of Arylboronic Acids [PDF]
, 2007 Herein, we report the automated parallel synthesis of solution-phase libraries of phosphoramidite ligands for the development of enantioselective catalysts.
Feringa, Ben L., +5 more
core +1 more source