Preparation of Arylphosphonates by Palladium(0)-Catalyzed Cross-Coupling in the Presence of Acetate Additives: Synthetic and Mechanistic Studies
作者:Marcin Kalek、Martina Jezowska、Jacek Stawinski
DOI:10.1002/adsc.200900590
日期:2009.12
arylphosphonate diesters via a palladium-catalyzedcross-coupling of H-phosphonatediesters with aryl electrophiles, promoted by acetate ions, was developed. A significant shortening of the cross-coupling time in the presence of the added acetate ions was achieved for bidentate and monodentate supporting ligands, and for different aryl electrophiles (iodo, bromo and triflate derivatives). The reaction conditions