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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
Penton, John R.,Zollinger, Heinrich
, p. 1728 - 1738 (1981)
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
