期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 16, 期 46, 页码 13729-13740出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201001688
关键词
gold; homogeneous catalysis; N-heterocyclic carbenes
资金
- ERC (FUNCAT)
- EPSRC
- Royal Society
- EPSRC [EP/H015418/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H015418/1] Funding Source: researchfish
The use of a versatile N-heterocyclic carbene (NHC) gold(I) hydroxide precatalyst, [Au(OH)(IPr)], (IPr = N,N'-bis(2,6-diisopropylphenyl)-imidazol-2-ylidene) permits the in situ generation of the [Au(IPr)](+) ion by simple addition of a Bronsted acid. This cationic entity is believed to be the active species in numerous catalytic reactions. H-1 NMR studies in several solvent media of the in situ generation of this [Au(IPr)](+) ion also reveal the formation of a dinuclear gold hydroxide intermediate [{Au(IPr)}(2)(mu-OH)], which is fully characterized and was tested in gold(I) catalysis.
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