Ligand Effects in .sigma.-Bond Activation by Transition Metal-Ligand Complexes

1995 ◽  
Vol 117 (20) ◽  
pp. 5531-5533 ◽  
Author(s):  
Brenda L. Tjelta ◽  
P. B. Armentrout
Keyword(s):  
Transition Metal ◽  
Bond Activation ◽  
Ligand Effects ◽  
Metal Ligand ◽  
Sigma Bond

scholarly journals Applications of bond energies of transition-metal-ligand σ-bonds inC–H bond activation

2021 ◽  
Vol 51 (2) ◽  
pp. 110-122
Author(s):  
Jin-Pei Cheng ◽  
Jun-Yan Wu ◽  
Jin-Dong Yang
Keyword(s):  
Transition Metal ◽  
Bond Activation ◽  
Bond Energies ◽  
Sigma Bonds ◽  
Metal Ligand

Sigma bond activation by transition metal ions: the Co(CH4)n+ systems revisited

2001 ◽  
Vol 204 (1-3) ◽  
pp. 281-294 ◽  
Author(s):  
Qiang Zhang ◽  
Paul R Kemper ◽  
Seung Koo Shin ◽  
Michael T Bowers
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Bond Activation ◽  
Transition Metal Ions ◽  
Sigma Bond

Insertion of Sc+ into H2: The First Example of Cluster-Mediated .sigma.-Bond Activation by a Transition Metal Center

1994 ◽  
Vol 116 (21) ◽  
pp. 9710-9718 ◽  
Author(s):  
John E. Bushnell ◽  
Paul R. Kemper ◽  
Philippe Maitre ◽  
Michael T. Bowers
Keyword(s):  
Transition Metal ◽  
Bond Activation ◽  
Metal Center ◽  
Sigma Bond

Carbon Dioxide-Mediated C(sp2)–H Arylation of Primary and Secondary Benzylamines

2018 ◽  
Author(s):  
Mohit Kapoor ◽  
Pratibha Chand-Thakuri ◽  
Michael Young
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Bond Activation ◽  
Bond Formation ◽  
Carbon Bond ◽  
Chelate Effect ◽  
Free Amine ◽  
Carbon Carbon Bond ◽  
New Strategy ◽  
Metal Catalyzed

Carbon-carbon bond formation by transition metal-catalyzed C–H activation has become an important strategy to fabricate new bonds in a rapid fashion. Despite the pharmacological importance of <i>ortho</i>-arylbenzylamines, however, effective <i>ortho</i>-C–C bond formation from C–H bond activation of free primary and secondary benzylamines using Pd<sup>II</sup> remains an outstanding challenge. Presented herein is a new strategy for constructing <i>ortho</i>-arylated primary and secondary benzylamines mediated by carbon dioxide (CO<sub>2</sub>). The use of CO<sub>2</sub> is critical to allowing this transformation to proceed under milder conditions than previously reported, and that are necessary to furnish free amine products that can be directly used or elaborated without the need for deprotection. In cases where diarylation is possible, a chelate effect is demonstrated to facilitate selective monoarylation.

Transition-Metal-Catalyzed Oxidative and Decarboxylative Acylations through sp2 C-H Bond Activation

2015 ◽  
Vol 20 (5) ◽  
pp. 471-511 ◽  
Author(s):  
Satyasheel Sharma ◽  
Neeraj Kumar Mishra ◽  
Youngmi Shin ◽  
In Su Kim
Keyword(s):  
Transition Metal ◽  
Bond Activation ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Recent Advances in Transition Metal Catalyzed C-H Functionalization Reactions Involving Aza/Oxabicyclic Alkenes

Synthesis ◽  
2021 ◽  
Author(s):  
Masilamani Jeganmohan ◽  
Pinki Sihag
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Ring Opening ◽  
Bond Activation ◽  
Considerable Progress ◽  
Double Bonds ◽  
Facial Selectivity ◽  
Ring Opening Reactions ◽  
Metal Catalyzed

Bicyclic alkenes, including Oxa- and azabicyclic alkenes can be readily activated by using transition-metal complexes with facial selectivity, because of the intrinsic angle strain on carbon-carbon double bonds of these unsymmetrical bicyclic systems. During last decades considerable progress has been done in the area of ring-opening of bicyclic strained ring by employing the concept of C-H activation. This Review comprehensively compiles the various C-H bond activation assisted reactions of oxa- and azabicyclic alkenes, viz., ring-opening reactions, hydroarylation as well as annulation reactions.

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