The activation of small molecules by palladium(II) complexes: isolation of a novel formally palladium(I) complex |
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Affiliation: | 1. School of Pharmacy, University of Camerino, via S. Agostino 1, 62032 Camerino, Italy;2. School of Science and Technology, University of Camerino, via S. Agostino 1, 62032 Camerino, Italy;3. School of Biosciences and Biotechnology, University of Camerino, via S. Agostino 1, 62032 Camerino, Italy;4. School of Chemistry and Biochemistry, The University of Western Australia, Crawley, WA 6009, Australia;5. Centre for Microscopy, Characterization and Microanalysis M010, The University of Western Australia, Crawley, WA 6009, Australia;1. LCC-CNRS, Université de Toulouse, INPT, UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France;2. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation;1. Università degli Studi di Milano, Dipartimento di Chimica, via C. Golgi 19, 20133 Milano, Italy;2. University of Bern, Department für Chemie und BioChemie, Freiestrasse 3, CH 3012 Bern, Switzerland;1. School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin, 300384, PR China;2. Key Laboratory of Chemical Synthesis and Pollution Control of Sichuan Province, School of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637002, PR China;1. Faculdade de Ciências Exatas e Tecnologia, Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12, 79804-970 Dourados, MS, Brazil;2. Departamento de Química, Laboratório de Materiais Inorgânicos, Universidade Federal de Santa Maria, Av. Roraima, n.1000, 97105-900 Santa Maria, RS, Brazil;3. Freie Universität Berlin, Institute of Chemistry and Biochemistry, Fabeckstr. 34-36, D-14195 Berlin, Germany |
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Abstract: | Bis(solvento)palladium(II) complexes are shown to have an unusually high ability to activate organic substrates. Thus [Pd(dpe)(Me2CO)2](ClO4)2, dpe = Ph2PCH2CH2PPh2, catalyses the hydrogenation of olefins at 30 °C under 1 atm pressure of hydrogen. Ketonic groups are not reduced. When the alcoholysis of silanes is catalysed by [Pd(dpe)(ROH)2](ClO4)2, R = H, Me or Et. a remarkable brick-red palladium(I) complex [Pd2(dpe)2] (ClO4)2 is obtained. The potential of this complex as a catalyst for other reactions is emphasised. |
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