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Efficient imidazolium salts for palladium-catalyzed Mizoroki-Heck and Suzuki-Miyaura cross-coupling reactions
, Article Chinese Chemical Letters ; Volume 24, Issue 5 , 2013 , Pages 433-436 ; 10018417 (ISSN) ; Bagherzadeh, M ; Rostamnia, S ; Sharif University of Technology
2013
Abstract
The system, Pd(OAc)2/imidazolium salts (L2), was found as an efficient catalyst in the Heck coupling reaction of olefins with aryl halides and Suzuki reactions of various aryl halides with aryl boronic acids under aerobic condition. This catalytic system demonstrates great tolerance to a wide range of groups on all substrates of aryl halides, alkenes and aryl boronic acids
Magnetic nanocomposite based on functionalized salep as a green support for immobilization of palladium nanoparticles: Reusable heterogeneous catalyst for Suzuki coupling reactions
, Article Catalysis Communications ; Volume 97 , 2017 , Pages 27-31 ; 15667367 (ISSN) ; Motamedi, A ; Marvdashti, Z ; Hosseini, S. H ; Sharif University of Technology
Elsevier B.V
2017
Abstract
The synthesis and catalytic behavior of palladium loaded magnetic nanocomposite based on natural polysaccharide salep modified with poly (amino pyridine) is described. The synthesized support is loaded with relatively large amounts of palladium ions (0.34mmol g−1). This is a simple, ecologically safe and cost-effective route for the preparation of the novel heterogeneous catalyst that shows high activity for Suzuki coupling reactions under remarkably mild conditions. Furthermore, the prepared catalyst is magnetically recovered and effectively reused for seven cycles of reactions without significant loss of its catalytic activity and loaded palladium nanoparticles. © 2017