On the Role of Metal Contaminants in Catalyses with FeCl3
“On the Role of Metal Contaminants in Catalyses with FeCl3”, Angew. Chem. Int. Ed., 2009, 48(31), 5586-5587.
Catalyzed N-, O-, and C-arylation reactions ascribed to FeCl3 can instead result from catalysis by trace quantities of copper salts.