Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 17, Issue 4, Pages 1238-1246Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201002607
Keywords
gold; homogeneous catalysis; hydration; N-heterocyclic carbenes; nitrites
Categories
Funding
- ERC
- EPSRC
- CASE
- ENEA-CRESCO
Ask authors/readers for more resources
The synthesis of a series of dinuclear gold hydroxide complexes has been achieved. These complexes of type [{Au(IPr)}2(mu-OH)]X (X =BF4, NTf2, OTf, FABA, SbF6; IPr =2,6-bis(disopropylphenyl)imidazol-2-ylidene; NTf2= bis(trifluoromethanesulfonyl)imidate; OTf = trifluoromethanesulfonate; FABA = tetrakis(pentafluorophenyl)borate) are easily formed in the presence of water and prove highly efficient in the catalytic hydration of nitrites. Their facile formation in aqueous media suggests they are of relevance in gold-catalyzed reactions involving water. Additionally, a series of [Au-(IPr)(NCR)][BR4] (R = alkyl, aryl) ficient in the catalytic hydration of nitrites. Their facile formation in aqueous media suggests they are of relevance in gold-catalyzed reactions involving water. Additionally, a series of [Au-(IPr)(NCR)][BR4] (R= alkyl, aryl) complexes was synthesized as they possibly occur as intermediates in the catalytic reaction mechanism. H-1 and C-13 NMR data as well as key bond lengths obtained by X-ray diffraction studies are compared and reveal an interesting structure activity relationship. The collected data indicate a negligible effect of the nature of the nitrite on the reactivity of [Au(L)(NCR)][X] complexes in catalysis.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available