Di-<i>tert</i>-butylneopentylphosphine (DTBNpP): An Efficient Ligand in the Palladium-Catalyzed α-Arylation of Ketones
作者:Steven M. Raders、Jessica M. Jones、Jeffrey G. Semmes、Steven P. Kelley、Robin D. Rogers、Kevin H. Shaughnessy
DOI:10.1002/ejoc.201402474
日期:2014.11
palladium(II) acetate provide an efficient catalytic system for the α-arylation of ketones. Aryl bromides were coupled with ketones using 0.25–0.5 mol-% Pd(OAc)2/DTBNpP in toluene at 50 °C, whereas aryl chlorides required a higher catalyst loading (0.5–2.0 mol-%) and a higher temperature (80 °C). Coupling of 2-bromophenol with ketones using the Pd/DTBNpP system provides an efficient route for the synthesis