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- Title
Photo-assisted Oxidation of Anilines and Other Primary Aromatic Amines to Azo Compounds Using Mercury(II) Oxide as a Photo-Oxidant.
- Authors
Farhadi, Saeid; Zaringhadama, Parisa; Sahamieh, Reza Zarei
- Abstract
An efficient and selective photochemical method for the oxidation of primary aromatic amines to the corresponding azoaromatic compounds with HgO as the photo-oxidant is reported. Aniline and substituted anilines were transformed to the corresponding azobenzenes by treatment with HgO in CH3CN at room temperature in high yields. Under similar conditions, diamines such as o-, m- and or p-phenylenediamines gave the corresponding diaminoazo compounds. It was proposed that the photoactivated HgO effects the cleavage of one of the N-H bond of the amine to generate the aminyl radical which dimerizes to the hydrazobenzene via nitrogen-nitrogen coupling. The hydrazobenzene was then oxidized to azo product.
- Subjects
OXIDATION; ANILINE; AROMATIC amines; AZO compounds; MERCURIC oxide
- Publication
Acta Chimica Slovenica, 2007, Vol 54, Issue 3, p647
- ISSN
1318-0207
- Publication type
Article