Results 181 to 190 of about 6,583 (223)
Isodesmic C–H Borylation: Perspectives and Proof of Concept of Transfer Borylation Catalysis
Journal of the American Chemical Society, 2019 The potential advantages of using arylboronic esters as boron sources in C–H borylation are discussed. The concept is showcased using commercially available 2-mercaptopyridine as a metal-free catalyst for the transfer borylation of heteroarenes using ...
Vincent Desrosiers +1 more
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Organic & Biomolecular Chemistry, 2022
A radical borylation of vinyl azides with NHC-boranes in the presence of t BuSH is described, which enables the divergent synthesis of α-boryl ketones and borylated triazoles with excellent functional group tolerance and a broad substrate scope.
Yifei Zhang +4 more
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A radical borylation of vinyl azides with NHC-boranes in the presence of t BuSH is described, which enables the divergent synthesis of α-boryl ketones and borylated triazoles with excellent functional group tolerance and a broad substrate scope.
Yifei Zhang +4 more
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Formal nucleophilic borylation and borylative cyclization of organic halides
Organic & Biomolecular Chemistry, 2017Recent advances in borylations of organic halides, including both transition-metal-catalyzed and metal-free methods are summarized. Borylative cyclization is also discussed.
K, Kubota, H, Iwamoto, H, Ito
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Boryl ligands and their roles in metal-catalysed borylation reactions
Chemical Communications, 2009In this feature article, we discuss selected recent aspects of metal boryl (M-BR2) chemistry pertaining, in particular, to the role of late and post-transition metal boryl complexes in various catalytic processes. The exceptionally strong sigma-donor properties of boryl ligands and their related nucleophilic behaviour are highlighted.
Dang, Li, Lin, Zhenyang, Marder, Todd B.
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Hydrogenation of Borylated Arenes
Angewandte Chemie International Edition, 2018AbstractA cis‐selective hydrogenation of abundant aryl boronic acids and their derivatives catalyzed by rhodium cyclic (alkyl)(amino)carbene (Rh–CAAC) is reported. The reaction tolerates a variety of boron‐protecting groups and provides direct access to a broad scope of saturated, borylated carbo‐ and heterocycles with various functional groups.
Marco Wollenburg +2 more
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An Organometallic Strategy for Cysteine Borylation
Journal of the American Chemical Society, 2021Synthetic bioconjugation at cysteine (Cys) residues in peptides and proteins has emerged as a powerful tool in chemistry. Soft nucleophilicity of the sulfur in Cys renders an exquisite chemoselectivity with which various functional groups can be placed onto this residue under benign conditions.
Mary A. Waddington +7 more
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Photochemical Borylation of Nitroarenes
The Journal of Organic ChemistryWe describe a straightforward light-driven strategy for transforming nitroarenes to aryl boronic esters. This transformation proceeds under mild conditions at ambient temperature and tolerates a wide variety of functional groups. The approach offers an operationally simple and practical alternative for preparing aryl boronic esters directly from ...
Kaiyao Feng +5 more
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Beyond the Nucleophilic Role of Metal–Boryl Complexes in Borylation Reactions
ACS Catalysis, 2021Transition metal–boryl complexes play an important role as reactive intermediates in catalytic borylation processes and have enjoyed tremendous exploration.
Xueying Guo +3 more
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Quadruple Borylation of Terminal Alkynes
Journal of the American Chemical Society, 2019We present the first quadruple borylation reaction of terminal alkynes, affording functionalized 1,1,2,2-tetrakis(boronate) derivatives in a chemo-/regioselective manner. The methodology is operationally simple and a novel B-B bond activation without the need for a transition-metal catalyst.
Daiki Yukimori +4 more
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Regioselectivity of the borylation of alkanes and arenes
Chemical Society Reviews, 2011The borylation of alkanes and arenes has become some of the most practical C-H bond functionalization chemistry. Most striking is the high regioselectivity of these reactions. Rhodium and ruthenium complexes catalyze with exquisite selectivity the borylation of methyl C-H bonds over methylene or methine C-H bonds.
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