Palladium nanoparticles heterogeneous nucleation within organically grafted silica foams and their use as catalyst supports toward the Suzuki-Miyaura and Mizoroki-Heck coupling reactions

被引:44
作者
Ungureanu, S. [1 ,2 ]
Deleuze, H. [2 ]
Babot, O. [2 ]
Achard, M-F [1 ]
Sanchez, C. [3 ]
Popa, M. I. [4 ]
Backov, R. [1 ]
机构
[1] Univ Bordeaux 1, CNRS, UPR 8641, Ctr Rech Paul Pascal, F-33600 Pessac, France
[2] Univ Bordeaux 1, CNRS, ISM, F-33405 Talence, France
[3] Univ Paris 06, CNRS, UMR 7574, Lab Chim Mat Condensee Paris, F-75000 Paris, France
[4] Fac Chem Engn & Environm Protect, Iasi 700050, Romania
关键词
Foams; Silica; Hybrid materials; Nanoparticles; Catalysis; INTEGRATIVE-CHEMISTRY; PD NANOPARTICLES; POROUS SILICA; EMULSION; GENERATION; PALLADACYCLES; ARYL; IMMOBILIZATION; ARYLATION; LIQUID;
D O I
10.1016/j.apcata.2010.09.025
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Palladium nanoparticles supported within hybrid organic-inorganic foams have been generated The as-synthesized catalysts labeled Pd@gOrgano-Si(HIPE) (high internal phase emulsion) have been tested with or without addition of triphenylphosphine (PPh3) considering both the Suzuki-Miyaura and Mizoroki-Heck coupling reactions Particularly the catalysts Pd@gMercapto-Si(HIPE)-P4 and Pd@g3Amino-Si(HIPE)-P4 under addition of (PPh3) in a molar ratio 4 1 relative to palladium are offering good yields turnover and cycling performances for the Mizoroki-Heck coupling reaction (C) 2010 Elsevier B V All rights reserved
引用
收藏
页码:51 / 58
页数:8
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