Hydrogenation of Arenes over Catalysts that Combine a Metal Phase and a Grafted Metal Complex: Role of the Single-Site Catalyst

Hydrogenation of Arenes over Catalysts that Combine a Metal Phase and a Grafted Metal Complex: Role of the Single-Site Catalyst

Cooperating catalysts: The combined single‐site/dispersed‐metal catalyst [Rh(cod)(sulphos)]–Pd0/SiO2 (cod=cyclooctadiene; sulphos=−O3S(C6H4)CH2C(CH2PPh2)3) is more efficient than the dispersed‐metal catalyst Pd0/SiO2 for the hydrogenation of arenes to cycloalkanes. The grafted rhodium moieties and t...

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Veröffentlicht in:Angewandte Chemie International Edition 2003-06, Vol.42 (23), p.2636-2639
Hauptverfasser: Bianchini, Claudio, Dal Santo, Vladimiro, Meli, Andrea, Moneti, Simonetta, Moreno, Marta, Oberhauser, Werner, Psaro, Rinaldo, Sordelli, Laura, Vizza, Francesco
Format: Artikel
Sprache:eng
Schlagworte:
arenes
heterogeneous catalysis
hydrogenation
palladium
rhodium
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Zusammenfassung:Cooperating catalysts: The combined single‐site/dispersed‐metal catalyst [Rh(cod)(sulphos)]–Pd0/SiO2 (cod=cyclooctadiene; sulphos=−O3S(C6H4)CH2C(CH2PPh2)3) is more efficient than the dispersed‐metal catalyst Pd0/SiO2 for the hydrogenation of arenes to cycloalkanes. The grafted rhodium moieties and the palladium particles in [Rh(cod)(sulphos)]–Pd0/SiO2 cooperate to speed up the hydrogenation of arenes (see scheme).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200250667