Palladium phosphine complex catalysts immobilized on silica via a tripodal linker unit for the Suzuki–Miyaura coupling reactions of aryl chlorides
2014
Abstract Silica-immobilized palladium phosphine complex catalysts bearing a tripodal linker unit were tested for their ability to facilitate the Suzuki–Miyaura coupling reactions of aryl chlorides. The catalyst containing the tripodal linker with a trimethylsilyl capping group on the residual surface silanol groups displayed better catalytic activities and lower palladium and phosphorus leaching levels than the catalysts bearing a conventional trialkoxy-type linker.
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