FTP, name this reaction in which copper I catalyzes the substitution of an aromatic amino group using a diazonium salt.
Evans used this reaction to add chlorinate ring two in his synthesis of teicoplanin aglycone. This reaction was once though to proceed via ion exchange, but Waters and Kochi proposed a radical method for ligand exchange. One reaction formylating benzene can use a reagent similar to one used in this reaction in place of a more typical aluminum chloride catalyst to proceed at atmospheric pressure; that reaction is named for Gattermann and is sometimes conflated with this reaction. A similar reaction that proceeds photochemically results in flourination and is named for Balz and Schiemann. The first step of this reaction requires the application of nitrous acid in acidic conditions, producting an N-nitrosamine, which rearranges and is replaced by a ligand donated from copper. FTP, name this reaction in which copper I catalyzes the substitution of an aromatic amino group using a diazonium salt.
Evans used this reaction to add chlorinate ring two in his synthesis of teicoplanin aglycone.
{Sandmeyer} Reaction