Results 11 to 20 of about 2,786 (190)
Decarboxylative borylation [PDF]
Science, 2017 Swapping boron acids for carbon acids Carbon-bound boronic acids and their esters are widely used as coupling partners to make carbon-carbon bonds. More recently, these chemicals have garnered pharmaceutical interest in their own right. Li et al.
Chao Li +11 more
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Borylation–Reduction–Borylation for the Formation of 1,4-Azaborines
Organic Letters, 2023 Given the current interest in materials containing 1,4-azaborine units, the development of new routes to these structures is important. Carbonyl directed electrophilic borylation using BBr3 is a facile method for the ortho-borylation of N,N-diaryl-amide derivatives.
Kothavale, Shantaram S. +5 more
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Nickel boryl complexes and nickel-catalyzed alkyne borylation
Chemical Science, 2023 Nickel bis-boryl complexes cis-[Ni(NHC)2(Bcat)2], cis-[Ni(NHC)2(Bpin)2] and cis-[Ni(NHC)2(Beg)2] are presented and the nickel-catalyzed alkyne borylation is reported.
Lukas Tendera +3 more
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Electrochemical Borylation of Carboxylic Acids [PDF]
Proceedings of the National Academy of Sciences, 2021 Significance Boronic acids are one of the most useful functional groups in organic chemistry and can be used as intermediates in synthesis or as key motifs in medicines. This work describes an extremely simple and economical way to use electrochemistry to convert carboxylic acids, through the intermediacy of redox-active esters, to ...
Lisa M. Barton +3 more
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Tri(boryl)alkanes and Tri(boryl)alkenes: The Versatile Reagents [PDF]
Molecules, 2020 The interest of organoboron chemistry in organic synthesis is growing, together with the development of new and versatile polyborated reagents. Here, the preparation of 1,1,1-tri(boryl)alkanes, 1,2,3-tri(boryl)alkanes, 1,1,2-tri(boryl)alkanes, as well as 1,1,2-tri(boryl)alkenes as suitable and accessible polyborated systems is demonstrated as being ...
Oriol Salvadó, Elena Fernández
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Catalytic borylation of methane [PDF]
Science, 2016 Methane borylation in a cyclohexane sea Although methane combusts readily at high temperatures, it is generally the hardest hydrocarbon to transform under gentler conditions, owing to its particularly strong C-H bonds. Cook et al.
Kyle T, Smith +6 more
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C–H Borylation Catalysis of Heteroaromatics by a Rhenium Boryl Polyhydride
ACS Catalysis, 2021 Transition metal complexes bearing metal–boron bonds are of particular relevance to catalytic C–H borylation reactions, with iridium polyboryl and polyhydrido-boryl complexes the current benchmark catalysts for these transformations. Herein, we demonstrate that polyhydride boryl phosphine rhenium complexes are accessible and catalyze the C–H borylation
Liam J. Donnelly +5 more
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Angewandte Chemie, 2022 AbstractPyrazabole (1) is a readily accessible diboron compound that can be transformed into ditopic electrophiles. In 1 (and derivatives), the B⋅⋅⋅B separation is ca. 3 Å, appropriate for one boron centre bonding to N and one to the C7 of indoles and indolines.
Jürgen Pahl +4 more
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Borylated Methylenephosphonium Salts: Precursors of Elusive Boryl(phosphino)carbenes [PDF]
Journal of the American Chemical Society, 2010 The synthesis of a new family of boryl-substituted methylenephosphonium derivatives, the phosphorus analogues of iminium salts, has been developed. They were used in the preparation of the first stable boryl(phosphino)carbene, which has been fully characterized by NMR spectroscopy and X-ray crystallography.
Lavigne, Florie +6 more
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1,2-Boryl Migration Empowers Regiodivergent Synthesis of Borylated Furans [PDF]
Journal of the American Chemical Society, 2014 A regioselective transition metal-catalyzed cycloisomerization reaction of boron-containing alkynyl epoxides toward C2- and C3-borylated furans has been developed. It was found that the copper catalyst as well as the gold catalyst with more basic triflate counterion favor boryl migration toward C3-borylated furans, whereas employment of the cationic ...
Shiroodi, Roohollah Kazem +2 more
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