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Start Over Author "Schiesaro, Irene" Topic copper
2 results on '"Schiesaro, Irene"'

1. Development of new and efficient copper(II) complexes of hexyl bis(pyrazolyl)acetate ligands as catalysts for allylic oxidation.

Author

Gabrielli, Serena, Pellei, Maura, Venditti, Iole, Fratoddi, Ilaria, Battocchio, Chiara, Iucci, Giovanna, Schiesaro, Irene, Meneghini, Carlo, Palmieri, Alessandro, Marcantoni, Enrico, Bagnarelli, Luca, Vallesi, Riccardo, and Santini, Carlo

Subjects
MOLECULAR structure, X-ray absorption near edge structure, ACETATES, X-ray photoelectron spectroscopy, COPPER, OXIDATION, X-ray absorption
Abstract

In this study, two new hexyl bis(pyrazol-1-yl)acetate ligands and related copper(II) complexes were prepared and fully characterized in the solid state and in solution. Their electronic and molecular structures were investigated by X-ray photoelectron spectroscopy and near edge X-ray absorption; their ligand molecular structural stability upon coordination to copper was also investigated. The Cu(II) complexes were studied as new catalysts in copper-catalyzed C–H oxidation for allylic functionalization (the Kharasch–Sosnovsky reaction) avoiding the use of any external reducing agents. Using 5 mol% of these catalysts and tert-butylperoxybenzoate as the oxidant, allylic benzoates were obtained in up to 90% yield: the general reaction time was decreased to 6 h and a 5 to 1 ratio of the alkene and tert-butylperoxybenzoate was used to overcome the two most important limitations on their use in chemistry. [ABSTRACT FROM AUTHOR]

Published
2020
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2. Development of new and efficient copper(ii) complexes of hexyl bis(pyrazolyl)acetate ligands as catalysts for allylic oxidation

Author

Carlo Santini, Alessandro Palmieri, Maura Pellei, Iole Venditti, Carlo Meneghini, Giovanna Iucci, Chiara Battocchio, Ilaria Fratoddi, Irene Schiesaro, Luca Bagnarelli, Enrico Marcantoni, Serena Gabrielli, Riccardo Vallesi, Gabrielli, Serena, Pellei, Maura, Venditti, Iole, Fratoddi, Ilaria, Battocchio, Chiara, Iucci, Giovanna, Schiesaro, Irene, Meneghini, Carlo, Palmieri, Alessandro, Marcantoni, Enrico, Bagnarelli, Luca, Vallesi, Riccardo, and Santini, Carlo

Subjects
chemistry.chemical_classification, conjugates, Allylic rearrangement, Chemistry, Reducing agent, Alkene, Ligand, Copper(I) complexes, chemistry.chemical_element, Copper, anticancer compounds, Catalysis, Inorganic Chemistry, X-ray photoelectron spectroscopy, Yield (chemistry), gold nanoparticles, Polymer chemistry, drug delivery
Abstract

In this study, two new hexyl bis(pyrazol-1-yl)acetate ligands and related copper(ii) complexes were prepared and fully characterized in the solid state and in solution. Their electronic and molecular structures were investigated by X-ray photoelectron spectroscopy and near edge X-ray absorption; their ligand molecular structural stability upon coordination to copper was also investigated. The Cu(ii) complexes were studied as new catalysts in copper-catalyzed C-H oxidation for allylic functionalization (the Kharasch-Sosnovsky reaction) avoiding the use of any external reducing agents. Using 5 mol% of these catalysts and tert-butylperoxybenzoate as the oxidant, allylic benzoates were obtained in up to 90% yield: the general reaction time was decreased to 6 h and a 5 to 1 ratio of the alkene and tert-butylperoxybenzoate was used to overcome the two most important limitations on their use in chemistry.

Published
2020

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