Investigating PdEnCat catalysis

被引:76
作者
Broadwater, SJ [1 ]
McQuade, DT [1 ]
机构
[1] Cornell Univ, Dept Chem & Chem Biol, Baker Lab, Ithaca, NY 14853 USA
关键词
D O I
10.1021/jo0517904
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] The catalytic behavior of three commercially available PdEnCat catalysts was explored. When the three-phase test was used, it was demonstrated that these microencapsulated palladium catalysts act as heterogeneous sources, or reservoirs, for soluble, catalytically active species. In addition, kinetic data coupled with transmission electron microscopy and solvent-dependent investigations were used to support this conclusion.
引用
收藏
页码:2131 / 2134
页数:4
相关论文
共 55 条
[51]   A review of the problem of distinguishing true homogeneous catalysis from soluble or other metal-particle heterogeneous catalysis under reducing conditions [J].
Widegren, JA ;
Finke, RG .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2003, 198 (1-2) :317-341
[52]   Design and preparation of organic-inorganic hybrid catalysts [J].
Wight, AP ;
Davis, ME .
CHEMICAL REVIEWS, 2002, 102 (10) :3589-3613
[53]   Heck heterocoupling within a dendritic nanoreactor [J].
Yeung, LK ;
Crooks, RM .
NANO LETTERS, 2001, 1 (01) :14-17
[54]   Evidence that SCS pincer Pd(II) complexes are only precatalysts in Heck catalysis and the implications for catalyst recovery and reuse [J].
Yu, KQ ;
Sommer, W ;
Richardson, JM ;
Weck, M ;
Jones, CW .
ADVANCED SYNTHESIS & CATALYSIS, 2005, 347 (01) :161-171
[55]   Silica and polymer-tethered Pd-SCS-pincer complexes: evidence for precatalyst decomposition to form soluble catalytic species in Mizoroki-Heck chemistry [J].
Yu, KQ ;
Sommer, W ;
Weck, M ;
Jones, CW .
JOURNAL OF CATALYSIS, 2004, 226 (01) :101-110