Preparation of a Borane-Appended Co(III) Hydride: Evidence for Metal-Ligand Cooperativity in O—H Bond Activation

2021 ◽  
Author(s):  
Joseph A Zurakowski ◽  
Brady Austen ◽  
Maeve C Dufour ◽  
Moulika Bhattacharyya ◽  
Denis M Spasyuk ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Bond Activation ◽  
Chemical Transformations ◽  
Important Chemical ◽  
Metal Ligand

Cobalt hydrides are known to mediate a number of important chemical transformations including proton (H+), hydride (H—), and hydrogen-atom (Hdot) transfer. Central to the tunability of such frameworks is judicious...

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.

Stereochemistry of Dehydrogenation by D-Galactose Oxidase

1971 ◽  
Vol 49 (21) ◽  
pp. 3429-3437 ◽  
Author(s):  
A. Maradufu ◽  
G. M. Cree ◽  
A. S. Perlin
Keyword(s):  
Hydrogen Atom ◽  
Isotope Effect ◽  
Galactose Oxidase ◽  
Relative Impact ◽  
Chemical Transformations ◽  
Product Analysis ◽  
Deuterium Isotope Effect ◽  
Oxidation Rates ◽  
Selective Chemical ◽  
Sugar Derivatives

The stereochemistry of dehydrogenation of the primary carbinol group of D-galactose by D-galactose oxidase has been determined. Using D-galactose-6-d and methyl β-D-galactopyranoside-6-d, it has been established that the reaction involves removal of the pro-S 6-hydrogen atom. This conclusion is based on product analysis, and on the relative impact of the deuterium isotope effect on oxidation rates of substrates having different R:S deuteration patterns. The absolute configurations at C-6 of these substrates have been determined by selective chemical transformations to products of known configuration. The rotational conformation of the 6-carbinol group of D-galactose and its possible relationship to the specificity of the enzyme are discussed, as well as the stereochemistry of reductive deuteration of aldehydo sugar derivatives.

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

Metal–Ligand Cooperative Si ─ H Bond Activation

2019 ◽  
pp. 115-130
Author(s):  
Francis Forster ◽  
Martin Oestreich
Keyword(s):  
Bond Activation ◽  
Metal Ligand

scholarly journals Manganese(I)-Catalyzed H–P Bond Activation via Metal–Ligand Cooperation

2021 ◽  
Author(s):  
Juana M. Pérez ◽  
Roxana Postolache ◽  
Marta Castiñeira Reis ◽  
Esther G. Sinnema ◽  
Denisa Vargová ◽  
...  
Keyword(s):  
Bond Activation ◽  
Metal Ligand

Cooperative bond activation reactions with carbene complexes

2018 ◽  
Vol 54 (50) ◽  
pp. 6540-6553 ◽  
Author(s):  
Kai-Stephan Feichtner ◽  
Viktoria H. Gessner
Keyword(s):  
Bond Activation ◽  
Carbene Complexes ◽  
Recent Advances ◽  
Metal Ligand

This review highlights the recent advances in the application of carbene complexes in bond activation reactions via metal–ligand cooperation.

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