Synthesis and Catalytic Activity of Rhodium(I) and Iridium(I) 4,5-Dibrominated N-Heterocyclic Carbenes

2018 ◽  
Author(s):  
Samantha Furfari ◽  
Matthew Gyton ◽  
Marcus Cole
Keyword(s):  
Catalytic Activity ◽  
Spectroscopic Data ◽  
Heterocyclic Carbenes ◽  
Transfer Hydrogenation ◽  
Carbonyl Complexes ◽  
Donor Capacity ◽  
Catalytic Applications

The synthesis and characterisation of another example of an air-stable carbene is described, in addition to the preparation of rhodium and iridium olefin and carbonyl complexes. The spectroscopic data indicates that these air-stable carbenes do not display reduced sigma-donor capacity of the carbenic centre. The catalytic applications of these carbenes are explored in the hydrosilylation and transfer hydrogenation processes.

Synthesis and Catalytic Activity of Rhodium(I) and Iridium(I) 4,5-Dibrominated N-Heterocyclic Carbenes

2018 ◽  
Author(s):  
Samantha Furfari ◽  
Matthew Gyton ◽  
Marcus Cole
Keyword(s):  
Catalytic Activity ◽  
Spectroscopic Data ◽  
Heterocyclic Carbenes ◽  
Transfer Hydrogenation ◽  
Carbonyl Complexes ◽  
Donor Capacity ◽  
Catalytic Applications

The synthesis and characterisation of another example of an air-stable carbene is described, in addition to the preparation of rhodium and iridium olefin and carbonyl complexes. The spectroscopic data indicates that these air-stable carbenes do not display reduced sigma-donor capacity of the carbenic centre. The catalytic applications of these carbenes are explored in the hydrosilylation and transfer hydrogenation processes.

N-heterocyclic carbenes of iridium(I): ligand effects on the catalytic activity in transfer hydrogenation

2009 ◽  
pp. 7055 ◽  
Author(s):  
Sandra C. Zinner ◽  
Christoph F. Rentzsch ◽  
Eberhardt Herdtweck ◽  
Wolfgang A. Herrmann ◽  
Fritz. E. Kühn
Keyword(s):  
Catalytic Activity ◽  
Heterocyclic Carbenes ◽  
Transfer Hydrogenation ◽  
Ligand Effects

scholarly journals Catalytic activity in transfer hydrogenation using ruthenium (II) carbonyl complexes containing two 1,8-naphthyridine as N-monodentate ligands

2019 ◽  
Vol 486 ◽  
pp. 129-134
Author(s):  
Juana Gajardo ◽  
Juan C. Araya ◽  
Andrés Ibáñez ◽  
Véronique Guerchais ◽  
Hubert Le Bozec ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Transfer Hydrogenation ◽  
Carbonyl Complexes ◽  
Monodentate Ligands

Ruthenium(II)–carbonyl complexes containing two N-monodentate 1,8-naphthyridine ligands: active catalysis in transfer hydrogenation reactions

2018 ◽  
Vol 74 (11) ◽  
pp. 1547-1552
Author(s):  
Juana Guajardo ◽  
Andrés Ibañez ◽  
Veronique Guerchais ◽  
Andrés Vega ◽  
Sergio Moya ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Good Yield ◽  
Hydrogen Transfer ◽  
Transfer Reaction ◽  
Transfer Hydrogenation ◽  
Distorted Octahedron ◽  
High Yield ◽  
Carbonyl Complexes ◽  
Hydrogen Transfer Reaction ◽  
Hydrogenation Reactions

The reaction of 2-aminonicotinaldehyde with 2- or 4-methoxyacetophenone in basic media leads to the new ligands 2-(4-methoxyphenyl)-1,8-naphthyridine and 2-(2-methoxyphenyl)-1,8-naphthyridine, respectively, in high yield. The reaction of these naphthyridine derivatives with [RuCl2(CO)2] n leads to the respective complexes cis-dicarbonyldichloridobis[2-(4-methoxyphenyl)-1,8-naphthyridine-κN 8]ruthenium(II) and cis-dicarbonyldichloridobis[2-(2-methoxyphenyl)-1,8-naphthyridine-κN 8]ruthenium(II), both [RuCl2(C15H12N2O)2(CO)2], in good yield. Both ruthenium(II) complexes display a slightly distorted octahedron with two cis carbonyl, two cis chloride and two cis naphthyridine ligands, the latter coordinated in a monodentate fashion through the N atom in the 8-position. Both complexes exhibit a moderate catalytic activity in the hydrogen-transfer reaction from propan-2-ol to acetophenone in the presence of a base, with 100% selectivity.

scholarly journals Arene-Osmium(II) Complexes in Homogeneous Catalysis

Inorganics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 55
Author(s):  
Pascale Crochet ◽  
Victorio Cadierno
Keyword(s):  
Homogeneous Catalysis ◽  
Review Article ◽  
Transfer Hydrogenation ◽  
Nitrile Hydration ◽  
Bond Forming ◽  
Catalytic Applications

Although the application of arene-osmium(II) complexes in homogeneous catalysis has been much less studied than that of their ruthenium analogues, different works have shown that, in some instances, a comparable or even superior effectiveness can be achieved with this particular class of compounds. This review article focuses on the catalytic applications of arene-osmium(II) complexes. Among others, transfer hydrogenation, hydrogenation, oxidation, and nitrile hydration reactions, as well as different C-C bond forming processes, are comprehensively discussed.

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