[Pd(IPr*)(acac)Cl]: An Easily Synthesized, Bulky Precatalyst for C–N Bond Formation
作者:Sebastien Meiries、Anthony Chartoire、Alexandra M. Z. Slawin、Steven P. Nolan
DOI:10.1021/om300205c
日期:2012.4.23
synthesis of [Pd(IPr*)(acac)Cl] has been developed from commercially available Pd(acac)2 and the easily prepared IPr*·HCl (acac = acetylacetonate; IPr* = N,N′-bis(2,6-bis(diphenylmethyl)-4-methylphenyl)imidazol-2-ylidene). The reactivity of the resulting complex [Pd(IPr*)(acac)Cl] (1) as a highly active PdII precatalyst for the Buchwald–Hartwig arylamination coupling has been explored. A wide range of substrates
P(<i>i</i>-BuNCH<sub>2</sub>CH<sub>2</sub>)<sub>3</sub>N: An Effective Ligand in the Palladium-Catalyzed Amination of Aryl Bromides and Iodides
作者:Sameer Urgaonkar、M. Nagarajan、J. G. Verkade
DOI:10.1021/jo0205309
日期:2003.1.1
It is shown that the bicyclictriaminophosphine P(i-BuNCH2CH2)3N serves as an effective ligand for the palladium-catalyzed amination of a wide array of arylbromides and iodides. Other bicyclic or acyclic triaminophosphines, even those of similar basicity and/or bulk, were inferior.