ChemInform Abstract: Aryl-Aryl Bond Formation by the Fluoride-Free Cross-Coupling of Aryldisiloxanes with Aryl Bromides.

ChemInform ◽  
2012 ◽  
Vol 43 (14) ◽  
pp. no-no
Author(s):  
David R. Spring ◽  
et al. et al.
Keyword(s):  
Bond Formation ◽  
Cross Coupling ◽  
Aryl Bromides

Aryl-Aryl Bond Formation by the Fluoride-Free Cross-Coupling of Aryldisiloxanes with Aryl Bromides

2011 ◽  
Vol 17 (47) ◽  
pp. 13230-13239 ◽  
Author(s):  
Christine M. Boehner ◽  
Elizabeth C. Frye ◽  
Kieron M. G. O'Connell ◽  
Warren R. J. D. Galloway ◽  
Hannah F. Sore ◽  
...  
Keyword(s):  
Bond Formation ◽  
Cross Coupling ◽  
Aryl Bromides

Design and Development of Fe-Catalyzed Intra- and Intermolecular Carbofunctionalization of Vinyl Cyclopropanes

2019 ◽  
Author(s):  
Lei Liu ◽  
Wes Lee ◽  
Mingbin Yuan ◽  
Chris Acha ◽  
Michael B. Geherty ◽  
...  
Keyword(s):  
Bond Formation ◽  
Cross Coupling ◽  
Alkyl Halides ◽  
Grignard Reagents ◽  
Mechanistic Studies ◽  
Radical Intermediates ◽  
Design And Implementation ◽  
Solvent Cage ◽  
Radical Cascade ◽  
Radical Processes

Design and implementation of the first (asymmetric) Fe-catalyzed intra- and intermolecular difunctionalization of vinyl cyclopropanes (VCPs) with alkyl halides and aryl Grignard reagents has been realized via a mechanistically driven approach. Mechanistic studies support the diffusion of the alkyl radical intermediates out of the solvent cage to participate in an intra- or -intermolecular radical cascade with the VCP followed by re-entering the Fe radical cross-coupling cycle to undergo selective C(sp2)-C(sp3) bond formation. Overall, we provide new design principles for Fe-mediated radical processes and underscore the potential of using combined computations and experiments to accelerate the development of challenging transformations.

Monodentate Trialkylphosphines: Privileged Ligands in Metal-catalyzed Crosscoupling Reactions

2020 ◽  
Vol 24 (3) ◽  
pp. 231-264 ◽  
Author(s):  
Kevin H. Shaughnessy
Keyword(s):  
Transition Metal ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Aryl Bromides ◽  
Wide Range ◽  
Sterically Demanding ◽  
Transition Metal Catalyzed ◽  
Catalyzed Reactions ◽  
Metal Catalyzed

Phosphines are widely used ligands in transition metal-catalyzed reactions. Arylphosphines, such as triphenylphosphine, were among the first phosphines to show broad utility in catalysis. Beginning in the late 1990s, sterically demanding and electronrich trialkylphosphines began to receive attention as supporting ligands. These ligands were found to be particularly effective at promoting oxidative addition in cross-coupling of aryl halides. With electron-rich, sterically demanding ligands, such as tri-tertbutylphosphine, coupling of aryl bromides could be achieved at room temperature. More importantly, the less reactive, but more broadly available, aryl chlorides became accessible substrates. Tri-tert-butylphosphine has become a privileged ligand that has found application in a wide range of late transition-metal catalyzed coupling reactions. This success has led to the use of numerous monodentate trialkylphosphines in cross-coupling reactions. This review will discuss the general properties and features of monodentate trialkylphosphines and their application in cross-coupling reactions of C–X and C–H bonds.

Recent Advances in C–Br Bond Formation

Synlett ◽  
2021 ◽  
Author(s):  
Ying-Yeung Yeung ◽  
Jonathan Wong
Keyword(s):  
Organic Synthesis ◽  
Aromatic Compounds ◽  
Bond Formation ◽  
Cross Coupling ◽  
Catalytic Site ◽  
Atom Transfer ◽  
Bond Forming ◽  
Recent Advances ◽  
Catalytic Asymmetric ◽  
Site Selective

AbstractOrganobromine compounds are extremely useful in organic synthesis. In this perspective, a focused discussion on some recent advancements in C–Br bond-forming reactions is presented.1 Introduction2 Selected Recent Advances2.1 Catalytic Asymmetric Bromopolycyclization of Olefinic Substrates2.2 Catalytic Asymmetric Intermolecular Bromination2.3 Some New Catalysts and Reagents for Bromination2.4 Catalytic Site-Selective Bromination of Aromatic Compounds2.5 sp3 C–H Bromination via Atom Transfer/Cross-Coupling3 Outlook

Solvent-free palladium-catalyzed C–O cross-coupling of aryl bromides with phenols

2021 ◽  
Vol 31 (3) ◽  
pp. 409-411
Author(s):  
Sergey A. Rzhevskiy ◽  
Maxim A. Topchiy ◽  
Vasilii N. Bogachev ◽  
Lidiya I. Minaeva ◽  
Ilia R. Cherkashchenko ◽  
...  
Keyword(s):  
Cross Coupling ◽  
Solvent Free ◽  
Aryl Bromides ◽  
Palladium Catalyzed

scholarly journals Reductive Cross-Coupling of Conjugated Arylalkenes and Aryl Bromides with Hydrosilanes by Cooperative Palladium/Copper Catalysis

2016 ◽  
Vol 55 (21) ◽  
pp. 6275-6279 ◽  
Author(s):  
Kazuhiko Semba ◽  
Kenta Ariyama ◽  
Hong Zheng ◽  
Ryohei Kameyama ◽  
Shigeyoshi Sakaki ◽  
...  
Keyword(s):  
Cross Coupling ◽  
Copper Catalysis ◽  
Aryl Bromides
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