Scope and Mechanistic Studies of Intramolecular Aliphatic C−H Bond Activation of N-Heterocyclic Carbene Iridium Complexes§

2007 ◽  
Vol 26 (18) ◽  
pp. 4618-4626 ◽  
Author(s):  
Yusuke Tanabe ◽  
Fumihiro Hanasaka ◽  
Ken-ichi Fujita ◽  
Ryohei Yamaguchi
Keyword(s):  
Bond Activation ◽  
Iridium Complexes ◽  
Mechanistic Studies

Nickel-Catalyzed Hydroalkenylation of Alkynes through C–F Bond Activation: Synthesis of 2-Fluoro-1,3-dienes

Synthesis ◽  
2017 ◽  
Vol 49 (16) ◽  
pp. 3569-3575 ◽  
Author(s):  
Junji Ichikawa ◽  
Yota Watabe ◽  
Kohei Kanazawa ◽  
Takeshi Fujita
Keyword(s):  
Bond Activation ◽  
Oxidative Cyclization ◽  
Coupling Reactions ◽  
Mechanistic Studies ◽  
Co Catalyst

2-Fluoro-1,3-dienes were synthesized through nickel-catalyzed coupling reactions between β,β-difluorostyrenes and alkynes in the presence of ZrF4 as co-catalyst and a hydride source derived from triethylborane and lithium isopropoxide. Mechanistic studies revealed that the carbon–fluorine bond was cleaved by β-fluorine elimination from intermediary nickelacyclopentenes generated through oxidative cyclization of the two substrates.

Identifying and Rationalizing the Conditions for the Isomerization of 1,5-Cyclooctadiene in Iridium Complexes by Experimental and Theoretical Mechanistic Studies

2015 ◽  
Vol 34 (10) ◽  
pp. 2018-2027 ◽  
Author(s):  
Benjamin Raible ◽  
Verena Gierz ◽  
Doris Kunz
Keyword(s):  
Iridium Complexes ◽  
Mechanistic Studies

A coordinatively unsaturated iridium complex with an unsymmetrical redox-active ligand: (spectro)electrochemical and reactivity studies

2019 ◽  
Vol 48 (37) ◽  
pp. 13931-13942 ◽  
Author(s):  
Sebastian Sobottka ◽  
Margarethe Behr van der Meer ◽  
Estelle Glais ◽  
Uta Albold ◽  
Simon Suhr ◽  
...  
Keyword(s):  
Bond Activation ◽  
Iridium Complex ◽  
Iridium Complexes ◽  
Redox Active Ligand ◽  
Active Ligand ◽  
Redox Active ◽  
Metal Ligand

Metal–ligand cooperativity can be used in iridium complexes with an unsymmetrically substituted redox-active diamidobenzene ligand for bond activation reactions.

ChemInform Abstract: Ruthenium-Catalyzed Oxidative Coupling of Primary Amines with Internal Alkynes Through C-H Bond Activation: Scope and Mechanistic Studies.

ChemInform ◽  
2015 ◽  
Vol 46 (39) ◽  
pp. no-no
Author(s):  
Sara Ruiz ◽  
Pedro Villuendas ◽  
Manuel A. Ortuno ◽  
Agusti Lledos ◽  
Esteban P. Urriolabeitia
Keyword(s):  
Oxidative Coupling ◽  
Bond Activation ◽  
Primary Amines ◽  
Mechanistic Studies ◽  
Internal Alkynes

Complicated Electronic Process of C–C σ-Bond Activation of Cyclopropene by Ruthenium and Iridium Complexes: Theoretical Study

2012 ◽  
Vol 31 (23) ◽  
pp. 8189-8199 ◽  
Author(s):  
Atsushi Ishikawa ◽  
Yudai Tanimura ◽  
Yoshihide Nakao ◽  
Hirofumi Sato ◽  
Shigeyoshi Sakaki
Keyword(s):  
Bond Activation ◽  
Theoretical Study ◽  
Iridium Complexes ◽  
Electronic Process

Ancillary Ligand Effects on C−H Bond Activation Reactions Promoted by β-Diiminate Iridium Complexes

2005 ◽  
Vol 24 (25) ◽  
pp. 6250-6259 ◽  
Author(s):  
Wesley H. Bernskoetter ◽  
Emil Lobkovsky ◽  
Paul J. Chirik
Keyword(s):  
Bond Activation ◽  
Iridium Complexes ◽  
Ancillary Ligand ◽  
Ligand Effects

scholarly journals Catalytic Benzolactamization Through Isonitrile Insertion Enabled 1,4-Palladium Shift

2021 ◽  
Author(s):  
Fulin Zhang ◽  
Ruihua Zhao ◽  
Lei Zhu ◽  
Yinghua Yu ◽  
Saihu Liao ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Heterocyclic Compounds ◽  
Bond Activation ◽  
Bond Formation ◽  
Bioactive Molecules ◽  
Mechanistic Studies ◽  
Carbon And Nitrogen ◽  
New Methods ◽  
Novel Approach ◽  
Bicyclic System

<b>Isoindolinone is a class of versatile <i>N</i>-heterocycles embedded in many bioactive molecules and natural products. The invention of new methods to synthesize these heterocyclic compounds with easily accessible chemicals is always attractive. Herein, a conceptually novel approach to access this bicyclic system via isonitrile insertion enabled 1,4-pallaidum shift is described. Compared with conventional isonitrile participated C-H bond activation, both carbon and nitrogen atoms in isonitrile moiety are engaged in new bond formation. Notably, two different isoindolinones can be obtained selectively by switching the bases employed. Mechanistic studies including DFT calculations have shed lights on the reaction mechanism and explained the selectivity led to different products. Moreover, the power of current benzolactamization is further demonstrated by providing concise routes to key intermediates of indoprofen, indobufen, aristolactams, lennoxamine and falipamil.</b>

Silyl–pyridine–amine pincer-ligated iridium complexes for catalytic silane deuteration via room temperature C–D bond activation of benzene-d6

2019 ◽  
Vol 55 (7) ◽  
pp. 957-960 ◽  
Author(s):  
Takashi Komuro ◽  
Tomohiro Osawa ◽  
Ryuju Suzuki ◽  
Daiki Mochizuki ◽  
Hironori Higashi ◽  
...  
Keyword(s):  
Room Temperature ◽  
Bond Activation ◽  
Iridium Complexes

SiNN-pincer iridium complexes were synthesised and demonstrated to catalyse deuteration of trialkylsilanes with benzene-d6 through H/D exchange at room temperature.

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