Results 61 to 70 of about 12,716 (277)

Synthesis and Stabilities of 3-Borylated Indoles [PDF]

open access: yes, 2016
We report herein that 3-pinacol boronic esters undergo facile protodeborylation in the presence of palladium catalysts and base, and this contributes significantly to the generation of nonborylated indole byproducts in the B2Pin2-mediated palladium ...
Al-Saedy, M.A.E., Harrity, J.P.A.
core   +1 more source

Iridium-Catalyzed Silylation of C-H Bonds in Unactivated Arenes: A Sterically Encumbered Phenanthroline Ligand Accelerates Catalysis. [PDF]

open access: yes, 2019
We report a new system for the silylation of aryl C-H bonds. The combination of [Ir(cod)(OMe)]2 and 2,9-Me2-phenanthroline (2,9-Me2-phen) catalyzes the silylation of arenes at lower temperatures and with faster rates than those reported previously, when ...
Chen, Zhewei   +2 more
core   +4 more sources

Direct borylation of terrylene and quaterrylene

open access: yesBeilstein Journal of Organic Chemistry, 2020
The preparation of large rylenes often needs the use of solubilizing groups along the rylene backbone, and all the substituents of the terrylenes and quaterrylenes were introduced before creating the rylene skeleton.
Haruka Kano   +5 more
doaj   +1 more source

Dehydroborylation of Terminal Alkynes Using Lithium Aminoborohydrides

open access: yesMolecules, 2023
Dehydrogenative borylation of terminal alkynes has recently emerged as an atom-economical one-step alternative to traditional alkyne borylation methodologies.
P. Veeraraghavan Ramachandran   +1 more
doaj   +1 more source

Cyclopropyl and cyclobutylboronates and silanes: A stereo­selective approach [PDF]

open access: yes, 2018
Chiral cyclopropyl- and cyclobutylboronic esters and -silanes have become attractive intermediates for the preparation of functionalized small rings.
Martín-Heras, Víctor   +2 more
core   +1 more source

Insight into the copper-catalyzed borylation of strained alkenes [PDF]

open access: yes, 2015
This document is the accepted manuscript version of a published work that appeared in final form in Synlett 2015; 26(04): 494-500, copyright © Georg Thieme Verlag Stuttgart · New York after peer review and technical editing by the publisher.
Amenós, Laura   +5 more
core   +2 more sources

Electrochemical Borylation of C−C and C−Het Bonds

open access: yesChemElectroChem
Recently, electrochemical methods have been harnessed as a transition metal‐free strategy for borylation reactions in the synthesis of organoboron compounds.
Tsoh Lam Cheung, Hairong Lyu
doaj   +1 more source

Immobilization of Ir(I) complex on covalent triazine frameworks for C-H borylation reactions : a combined experimental and computational study

open access: yes, 2019
Metal-modified covalent triazine frameworks (CTFs) have attracted considerable attention in heterogeneous catalysis due to their strong nitrogen-metal interactions exhibiting superior activity, stability and hence recyclability.
Everaert, Jonas   +9 more
core   +2 more sources

A General Procedure for the Regioselective Synthesis of Aryl Thioethers and Aryl Selenides Through C–H Activation of Arenes [PDF]

open access: yes, 2014
A general procedure for the synthesis of aryl thioethers and aryl selenides in one-pot through sequential iridium-catalyzed C–H borylation and copper-promoted C–S and C–Se bond formation is described.
Chih-Lun Yi   +3 more
core   +1 more source

Palladium-catalyzed borylation of aryl (pseudo)halides and its applications in biaryl synthesis

open access: yesChemistry Central Journal, 2018
A facile and efficient palladium-catalyzed borylation of aryl (pseudo)halides at room temperature has been developed. Arylboronic esters were expeditiously assembled in good yields and with a broad substrate scope and good functional group compatibility.
Hong Ji   +6 more
doaj   +1 more source

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