Development of versatile and silver-free protocols for gold(I) catalysis |
| |
Authors: | Gaillard Sylvain Bosson Johann Ramón Rubén S Nun Pierrick Slawin Alexandra M Z Nolan Steven P |
| |
Affiliation: | School of Chemistry, University of St Andrews, St Andrews, KY16 9ST UK. |
| |
Abstract: | 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 Brønsted acid. This cationic entity is believed to be the active species in numerous catalytic reactions. 1H 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(μ‐OH)], which is fully characterized and was tested in gold(I) catalysis. |
| |
Keywords: | gold homogeneous catalysis N‐heterocyclic carbenes |
本文献已被 PubMed 等数据库收录! |
|