Mechanisms of Diazo Coupling Reactions. Part XXXI. Aminoazo Formation in the Diazo Coupling of N,N-Dimethylaniline and m-Toluidine with p-Methoxybenzenediazonium Tetrafluoroborate in Acetonitrile

Article abstract of DOI:10.1002/hlca.19810640603

In the title reactions it is shown that aminoazo formation does not occur by direct attack of diazonium ion at C-atom.Initial attack is at N-atom, but proton loss from the ?_N-complex formed is relatively slow.Hence, at low amine concentration t