21924-71-0Relevant academic research and scientific papers
Photochemical Decomposition of 4-Arylazo- and 4-Arylazoxy-N,N-dialkylaniline N-Oxides
Albini, Angelo,Fasani, Elisa,Moroni, Micaela,Pietra, Silvio
, p. 1439 - 1444 (2007/10/02)
The 4-aryl-N,N-dialkylaniline N-oxides (1a-c) decompose on u.v. irradiation in aprotic solvents, undergoing deoxygenation as well as intramolecular hydrogen abstraction, to give amides and dealkylated products.The latter process is more important for the diethyl derivative (1b) (photoCope elimination).Visible irradiation is ineffective.The 4-arylazoxy-N,N-dialkylaniline N-oxides (2a-d) undergo photochemical deoxygenation from the amino group (major process) as well as from the azo group.The mechanism of these photoprocesses is discussed in general and in relation to the possible involvement of these N-oxide derivatives in photofading of the related azo dyes.
Mechanism of Diazo Coupling Reactions. Part XXXII. The Diazoamino Rearrangement in 20percent Acetonitrile/Aqueous Buffers
Kelly, Richard P.,Penton, John R.,Zollinger, Heinrich
, p. 122 - 132 (2007/10/02)
The rearrangements of 4'-methoxy-N-methyl- and N-methyl-4'-nitro-diazoaminobenzene have been studied in 20percent acetonitrile/aqueous buffers.The reactions are specifically acid catalyzed and involve pre-equilibrium formation of amine and diazonium salt
