New linker systems for superior immobilized catalysts
B Beele, J Guenther, M Perera, M Stach…
Index: Beele, Bjoern; Guenther, Johannes; Perera, Melanie; Stach, Michaela; Oeser, Thomas; Bluemel, Janet New Journal of Chemistry, 2010 , vol. 34, # 12 p. 2729 - 2731
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Citation Number: 23
Abstract
The rigid linkers E (p-C6H4PPh2) 4 (E= Si, Sn) have been synthesized from the corresponding precursors E (p-C6H4Br) 4 and immobilized by forming one (E= Si) or three (E= Sn) phosphonium groups that are attached to the silica support by electrostatic interactions. The remaining unquaternized phosphines are coordinated to Wilkinson-type Rh complexes. The catalyst immobilized by the rigid scaffold with three surface-bound ...
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