"Azene" redirects here. Not to be confused with the polycyclic hydrocarbons known as "acenes" or the acyclic saturated hydronitrogens known as "azanes".
General chemical formula of azo compounds
Azo compounds are organic compounds bearing the functional group diazenyl (R−N=N−R′, in which R and R′ can be either aryl or alkyl groups).
IUPAC defines azo compounds as: "Derivatives of diazene (diimide), HN=NH, wherein both hydrogens are substituted by hydrocarbyl groups, e.g. PhN=NPh azobenzene or diphenyldiazene.", where Ph stands for phenyl group.[1] The more stable derivatives contain two aryl groups. The N=N group is called an azo group (from French azote 'nitrogen', from Ancient Greek ἀ- (a-) 'not', and ζωή (zōē) 'life').
Many textile and leather articles are dyed with azo dyes and pigments.[2]
^IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "azo compounds". doi:10.1351/goldbook.A00560
^Cite error: The named reference TFL was invoked but never defined (see the help page).
Azocompounds are organic compounds bearing the functional group diazenyl (R−N=N−R′, in which R and R′ can be either aryl or alkyl groups). IUPAC defines...
important family of azocompounds, i.e. compounds containing the C-N=N-C linkage. Azo dyes are synthetic dyes and do not occur naturally. Most azo dyes contain...
chemistry, an azo coupling is an reaction between a diazonium compound (R−N≡N+) and another aromatic compound that produces an azocompound (R−N=N−R’)....
are typically not used to reduce aryl nitro compounds to anilines because they tend to produce azocompounds. (See below) Several methods have been described...
Azo violet (Magneson I; p-nitrobenzeneazoresorcinol) is an azocompound with the chemical formula C12H9N3O4. It is used commercially as a violet dye and...
Azo or AZO may refer to: Azo of Bologna, a medieval Italian jurist Azo of Iberia, a Georgian ruler Azocompound, a functional group and class of compounds...
The term 'azobenzene' or simply 'azo' is often used to refer to a wide class of similar compounds. These azocompounds are considered as derivatives of...
diazo compound is diazomethane, CH2N2. Diazo compounds (R2C=N2) should not be confused with azocompounds (R−N=N−R) or with diazonium compounds (R−N+2)...
been reported to cause sulfhemoglobinemia. Phenazopyridine is an azo dye. Other azo dyes, which were previously used in textiles, printing, and plastic...
and appears in the English names of some nitrogen compounds such as hydrazine, azides and azocompounds. Elemental nitrogen is usually produced from air...
carbon atom and an oxygen atom. Other common double bonds are found in azocompounds (N=N), imines (C=N), and sulfoxides (S=O). In a skeletal formula, a...
manufacture of azo dyes. It reacts with nitrous acid to form diazonium salt, which can undergo coupling reaction to form an azocompound. As azo-compounds are highly...
Pigment Yellow 12 is an organic compound and an azocompound. It is a widely used yellow pigment. It is also classified as a diarylide pigment, being derived...
Estibaliz, Merino. "Synthesis of azobenzenes: the coloured pieces of molecular materials" (PDF). Benzenediazonium chloride Azocompound Solvent Yellow 1 v t e...
Yellow 12, a diarylide pigment. The resulting azocompounds are often useful dyes and in fact are called azo dyes. The deep colors of the dyes reflects their...
acetate and cycasin, which they are found in cycad. "Methylazoxymethanol – Compound Summary". PubChem. National Center for Biotechnology Information. Retrieved...
where the combination of an organophosphine as an oxide acceptor, an azocompound as a hydrogen acceptor reagent, and a nucleophile are used to convert...
synthesis. Typical examples are molecules with a nitrogen-halogen bond, azocompounds, and organic and inorganic peroxides. Halogens undergo homolytic fission...
is an organic compound with the structural formula CH3CH2−O−C(=O)−N=N−C(=O)−O−CH2CH3. Its molecular structure consists of a central azo functional group...
considered N-oxides of azocompounds. Azoxy compounds are 1,3-dipoles and cycloadd to double bonds. Most azoxy-containing compounds have aryl substituents...
subject to laws and regulations in many countries, and the use of certain azocompounds is prohibited in the European Union as there are reasons to assume health...
systematic prediction of chemical reactions and behavior of chemical compounds and the design of chemical synthesis. The reactivity of a functional group...
not exposed to the light source to a characteristic dark blue colour. Azocompound Blueprint Ozalid Contact copier League of Nations (1937). Economic Committee:...
Business Media. p. 391. ISBN 9789401112925. AZO Materials (21 August 2001). "Polyester - SMC; High Impact". AZO Materials. Retrieved 23 December 2018. Trauth...
Toluidine red is an organic compound with the formula C10H6(OH)(N2C6H3(NO2)CH3). A dark red solid, the compound is classified as a azo dye consisting of a 2-naphthol...
Balsalazide is an anti-inflammatory drug used in the treatment of inflammatory bowel disease. It is sold under the brand names Giazo, Colazal in the US...
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