Monodentate Phosphines Provide Highly Active Catalysts for Pd??Catalyzed C N Bond??Forming Reactions of Heteroaromatic Halides/Amines and (H) N?? …

KW Anderson, RE Tundel, T Ikawa…

Index: Anderson, Kevin W.; Tundel, Rachel E.; Ikawa, Takashi; Altman, Ryan A.; Buchwald, Stephen L. Angewandte Chemie - International Edition, 2006 , vol. 45, # 39 p. 6523 - 6527

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Citation Number: 248

Abstract

Despite advances in the scope of palladium-catalyzed CÀN bond-forming reactions through the development of more active catalysts,[1, 2] limitations to the method still remain: 1) In many cases the coupling of substituted heteroaryl halides with amines is still problematic; 2) the N-arylation reactions of nitrogen heterocycles is limited in scope with respect to both coupling partners; 3) chemoselectivity in CÀN bond-forming processes has not been ...