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Hydrogenation of Arenes over Catalysts that Combine a Metal Phase and a Grafted Metal Complex: Role of the Single‐Site Catalyst
Author(s) -
Bianchini Claudio,
Dal Santo Vladimiro,
Meli Andrea,
Moneti Simonetta,
Moreno Marta,
Oberhauser Werner,
Psaro Rinaldo,
Sordelli Laura,
Vizza Francesco
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200250667
Subject(s) - catalysis , rhodium , palladium , metal , precious metal , chemistry , phase (matter) , cyclooctadiene , noble metal , organic chemistry , polymer chemistry
Cooperating catalysts : The combined single‐site/dispersed‐metal catalyst [Rh(cod)(sulphos)]–Pd 0 /SiO 2 (cod=cyclooctadiene; sulphos= − O 3 S(C 6 H 4 )CH 2 C(CH 2 PPh 2 ) 3 ) is more efficient than the dispersed‐metal catalyst Pd 0 /SiO 2 for the hydrogenation of arenes to cycloalkanes. The grafted rhodium moieties and the palladium particles in [Rh(cod)(sulphos)]–Pd 0 /SiO 2 cooperate to speed up the hydrogenation of arenes (see scheme).