European Journal of Inorganic Chemistry, volume 26, issue 18
Ruthenium(II) Tris‐Pyrazolylmethane Complexes in Transfer Hydrogenation Reactions
Alberto Gobbo
1
,
Xinyuan Ma
2
,
Gianluca Ciancaleoni
1
,
Stefano Zacchini
3
,
Lorenzo Biancalana
1
,
Massimo Guelfi
1
,
Guido Pampaloni
1
,
Steven P. Nolan
2
,
Fabio Marchetti
1
Publication type: Journal Article
Publication date: 2023-05-02
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 2.3
ISSN: 14341948, 10990682
Inorganic Chemistry
Abstract
While ruthenium(II) arene complexes have been widely investigated for their potential in catalytic transfer hydrogenation, studies on homologous compounds replacing the arene ligand with the six‐electron donor tris(1‐pyrazolyl)methane (tpm) are almost absent in the literature. The reactions of [RuCl(κ3‐tpm)(PPh3)2]Cl, 1, with a series of nitrogen ligands (L) proceeded with selective PPh3 mono‐substitution, affording the novel complexes [RuCl(κ3‐tpm)(PPh3)(L)]Cl (L=NCMe, 2; NCPh, 3; imidazole, 4) in almost quantitative yields. Products 2–4 were fully characterized by IR and multinuclear NMR spectroscopy, moreover the molecular structure of 4 was ascertained by single crystal X‐ray diffraction. Compounds 2–4 were evaluated as catalytic precursors in the transfer hydrogenation of a series of ketones with isopropanol as the hydrogen source, and 2 exhibited the highest activity. Extensive NMR experiments and DFT calculations allowed to elucidate the mechanism of the transfer hydrogenation process, suggesting the crucial role played by the tpm ligand, reversibly switching from tri‐ to bidentate coordination during the catalytic cycle.
Top-30
Citations by journals
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Pharmaceuticals
1 publication, 50%
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Russian Chemical Reviews
1 publication, 50%
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Citations by publishers
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Multidisciplinary Digital Publishing Institute (MDPI)
1 publication, 50%
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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii
1 publication, 50%
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Gobbo A. et al. Ruthenium(II) Tris‐Pyrazolylmethane Complexes in Transfer Hydrogenation Reactions // European Journal of Inorganic Chemistry. 2023. Vol. 26. No. 18.
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Gobbo A., Ma X., Ciancaleoni G., Zacchini S., Biancalana L., Guelfi M., Pampaloni G., Nolan S. P., Marchetti F. Ruthenium(II) Tris‐Pyrazolylmethane Complexes in Transfer Hydrogenation Reactions // European Journal of Inorganic Chemistry. 2023. Vol. 26. No. 18.
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TY - JOUR
DO - 10.1002/ejic.202300078
UR - https://doi.org/10.1002/ejic.202300078
TI - Ruthenium(II) Tris‐Pyrazolylmethane Complexes in Transfer Hydrogenation Reactions
T2 - European Journal of Inorganic Chemistry
AU - Gobbo, Alberto
AU - Ma, Xinyuan
AU - Ciancaleoni, Gianluca
AU - Zacchini, Stefano
AU - Biancalana, Lorenzo
AU - Guelfi, Massimo
AU - Pampaloni, Guido
AU - Nolan, Steven P.
AU - Marchetti, Fabio
PY - 2023
DA - 2023/05/02 00:00:00
PB - Wiley
IS - 18
VL - 26
SN - 1434-1948
SN - 1099-0682
ER -
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@article{2023_Gobbo,
author = {Alberto Gobbo and Xinyuan Ma and Gianluca Ciancaleoni and Stefano Zacchini and Lorenzo Biancalana and Massimo Guelfi and Guido Pampaloni and Steven P. Nolan and Fabio Marchetti},
title = {Ruthenium(II) Tris‐Pyrazolylmethane Complexes in Transfer Hydrogenation Reactions},
journal = {European Journal of Inorganic Chemistry},
year = {2023},
volume = {26},
publisher = {Wiley},
month = {may},
url = {https://doi.org/10.1002/ejic.202300078},
number = {18},
doi = {10.1002/ejic.202300078}
}