Intramolecular Pd(II)-Catalyzed Oxidative Biaryl Synthesis Under Air: Reaction Development and Scope
作者:Benoît Liégault、Doris Lee、Malcolm P. Huestis、David R. Stuart、Keith Fagnou
DOI:10.1021/jo800596m
日期:2008.7.1
New reaction conditions for intramolecular palladium(II)-catalyzed oxidative carbon−carbon bond formation under air are described. The use of pivalic acid as the reaction solvent, instead of acetic acid, results in greater reproducibility, higher yields, and broader scope. This includes the use of electron-rich diarylamines as illustrated in the synthesis of three naturally occurring carbazole products: