Blanco CO, Llovera L, Herrera AC, Dorta R, Agrifoglio G, Venuti D, Landaeta VR, Pastrán J (2021)
Publication Type: Journal article
Publication year: 2021
Book Volume: 524
Article Number: 120429
DOI: 10.1016/j.ica.2021.120429
Ruthenium (II) piano-stool complexes with bis-(+)-camphopyrazole ligands of C2 and C1 symmetry were prepared in good yields (66–98%). New C2-C1 ligands and complexes were characterized by multinuclear NMR spectroscopy, FT-IR and elemental analysis. The catalytic performance of the Ru(II)-bis-(+)-camphopyrazole complexes in the transfer hydrogenation of benzaldehyde and valeraldehyde using isopropanol/potassium carbonate and formic acid/triethylamine mixtures as hydrogen donors, was evaluated, resulting in moderate yields (>54%) for the reduction to the desired primary alcohols. The system with isopropanol as hydrogen source proved to be more selective than the analogous system using the azeotropic formic acid/triethylamine mixture, allowing benzyl alcohol to be obtained in quantitative yield (>99%) for a particular catalyst precursor. Furthermore, complexes with C2 symmetry ligands showed higher yields than those with C1 symmetry ligands in all of the evaluated systems.
APA:
Blanco, C.O., Llovera, L., Herrera, A.C., Dorta, R., Agrifoglio, G., Venuti, D.,... Pastrán, J. (2021). Ruthenium (II) complexes with C2- and C1-symmetric bis-(+)-camphopyrazole ligands and their evaluation in catalytic transfer hydrogenation of aldehydes. Inorganica Chimica Acta, 524. https://doi.org/10.1016/j.ica.2021.120429
MLA:
Blanco, Christian O., et al. "Ruthenium (II) complexes with C2- and C1-symmetric bis-(+)-camphopyrazole ligands and their evaluation in catalytic transfer hydrogenation of aldehydes." Inorganica Chimica Acta 524 (2021).
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