Results 21 to 30 of about 6,583 (223)
An evaluation of palladium-based catalysts for the base-free borylation of alkenyl carboxylates [PDF]
, 2021 Synthesis of organoboron derivatives is a key application of catalytic cross-coupling, with the Pd-catalyzed Miyaura borylation among the most versatile methods available.
Nahiane, Pipaon Fernandez +2 more
core +2 more sources
One Molecular Platform, Three Distinct Narrowband Organoboron TADF Emitters: A Divergent One-Pot Strategy From Green to Red. [PDF]
Angew Chem Int Ed EnglOne platform–three emitters: Divergent one‐pot borylation of a single indolocarbazole platform exploits competing mono‐ and double‐borylation pathways to generate three spectrally distinct organoboron MR‐TADF emitters spanning green to red, enabling color‐tunable narrowband OLEDs with external quantum efficiencies over 30%.
Lee JH, Yang M, Yasuda T.
europepmc +3 more sources
Transition-metal Free Visible Light Photoredox-catalyzed Remote C(sp3)-H Borylation Enabled by 1,5-Hydrogen Atom Transfer [PDF]
, 2022 We describe a transition-metal free, photoredox-catalyzed borylation method of unactivated C(sp3)-H bonds via initiated 1,5-hydrogen atom transfer (HAT).
Gaoge, Zhang +4 more
core +1 more source
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
openaire +3 more sources
Isodesmic C-H Borylation: Perspectives and Proof of Concept of Transfer Borylation Catalysis [PDF]
, 2018 The potential advantages of using arylboronic acidsor esters as boron source in the C-H borylation are discussed. Theconcept is showcased by using commercially available and air-stable2-mercaptopyridine as a metal-free catalyst for the transferborylation
Etienne, Rochette +1 more
core +2 more sources
Developing and Understanding Iridium-Catalysed Arene Borylation [PDF]
, 2011 Iridium catalysed C-H borylation has moved from an interesting observation to an efficient catalytic reaction. This work has developed and improved upon some of the key issues associated with the methodology.
HARRISSON, PETER
core +6 more sources
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
openaire +2 more sources
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
openaire +2 more sources
Borylcyclopropanes: Synthetic Strategies and Applications. [PDF]
Angew Chem Int Ed EnglBorylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Butt AA, Ready JM.
europepmc +3 more sources
Molecules, 2020 Borylated aryl alkynes have been synthesized via one-pot iridium catalyzed C–H borylation (CHB)/Sonogashira cross-coupling of aryl bromides. Direct borylation of aryl alkynes encountered problems related to the reactivity of the alkyne under CHB ...
Ghayoor A. Chotana +4 more
doaj +1 more source