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Template-Directed Synthesis of Palladium(II) Sulfonate-NHC Complexes and Catalytic Studies in Aqueous Mizoroki-Heck Reactions
被引:46
|作者:
Yuan, Dan
[1
]
Teng, Qiaoqiao
[1
]
Han Vinh Huynh
[1
]
机构:
[1] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
关键词:
N-HETEROCYCLIC CARBENES;
WATER;
LIGAND;
SUZUKI;
EFFICIENT;
PD(II);
SONOGASHIRA;
DINUCLEAR;
OXIDATION;
GOLD(I);
D O I:
10.1021/om500140g
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Oxidation of easily accessible thiolato-functionalized dinuclear Pd(II) NHC complexes 1-3 by Oxone gave rise to sulfonate-NHC complexes 4-6. This represents the first template-directed approach to NHC complexes bearing sulfonate functions, where the sulfur atoms undergo a six-electron oxidation, changing their oxidation states from -II to +IV. The catalytic activities of water-soluble 4-6 were also tested in aqueous Mizoroki-Heck reactions.
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页码:1794 / 1800
页数:7
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