Home Chemistry Organic Building Blocks Azoes 1,2-Diphenyldiazene
Isomerization: 1,2-Diphenyldiazene can undergo isomerization to its cis and trans isomers. This isomerization can be induced by heat, light, or catalysts. The conversion of the cis and trans isomers interconverts the arrangement of the phenyl groups around the diazenyl group.
Photolysis: Azobenzene is known to undergo photolysis when exposed to UV light. This process involves the cleavage of the diazenyl (-N=N-) bond, resulting in the formation of two phenyl radicals. Photolysis is often used to trigger molecular motion or as a light-responsive switch in various applications.
Azo coupling: Azobenzene can undergo azo coupling reactions with other aromatic compounds. This involves the formation of a new azo (-N=N-) bond between the diazenyl group of azobenzene and another aromatic compound, typically in the presence of a coupling agent like copper salts. Azo dyes are often synthesized using this reaction.
Oxidation: Azobenzene can be oxidized to form compounds like azoxybenzene or azobenzoic acid. Oxidizing agents like potassium permanganate (KMnO4) or chromium(VI) reagents can be used for this purpose.
Halogenation: Azobenzene can undergo halogenation reactions, where halogen atoms (e.g., chlorine or bromine) can be added to the aromatic rings. The halogenation can occur on one or both phenyl rings, depending on the reaction conditions.
Nitration: Azobenzene can be nitrated to form nitroazobenzene by treatment with a nitrating agent such as concentrated nitric acid (HNO3).
Reductive Cleavage: Under certain conditions, azobenzene can undergo reductive cleavage of the diazenyl (-N=N-) bond, yielding aniline derivatives and other products.
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(Diazene-1,2-diylbis(4,1-phenylene))dimethanol
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5-((4-Carboxyphenyl)diazenyl)-2-hydroxybenzoic acid
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