Annulated N-Heterocyclic Carbene Ligands Derived from 2-Methylaminopiperidine: Their Complexes and Catalytic Applications
Makaleler > Tam Makale · 2008
Yazarlar: Hayati TÜRKMEN, Tania PAPE, F. Ekkehardt HAHN, BEKİR ÇETİNKAYA
Organometallics, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2008, cilt 27, ss 571-575
DOI: 10.1021/om701105y
Özet
A new type of carbene precursor, 1,5,6,7,8,8a-hexahydroimidazo[1,5- a ]pyridine ( 1 ), has been prepared from 2-(aminomethyl)piperidine and N,N -dimethylformamide dimethylacetal. The reactions of three imidazolidinium salts with [Rh(acac)(COD)] and [Ir(μ-OMe)(COD)] 2 were found to afford rhodium and iridium complexes of N-heterocyclic carbenes, respectively. These complexes have been tested as catalysts in the transfer hydrogenation of cyclohexanone and acetophenone using 2-propanol as hydrogen source.