quinone
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The quinones are a class of organic compounds that are formally "derived from aromatic compounds [such as benzene or naphthalene] by conversion of an even number of –CH= groups into –C(=O)– groups with any necessary rearrangement of double bonds", resulting in "a fully conjugated cyclic dione structure". The archetypical member of the class is 1,4-benzoquinone or cyclohexadienedione, often called simply "quinone" (thus the name of the class). Other important examples are 1,2-benzoquinone ('''ortho-quinone'''), 1,4-naphthoquinone and 9,10-anthraquinone.
Wikidata facts
- Subclass of
- diketone
Show 5 more facts
- described by source
- Brockhaus and Efron Encyclopedic Dictionary
- Commons category
- Quinones
- topic's main category
- Category:Quinones
- SMARTS notation
- [$(C1=CC(=[OX1])C=CC1=[OX1]),$(c1cc(=[OX1])c(=[OX1])cc1)]
- different from
- quinine
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Encyclopedic overview
14 sectionsContents
- Properties
- Reactions
- Reduction
- Addition
- Occurrence and uses
- Production of hydrogen peroxide
- Biochemistry
- Medical
- Dyes
- Photography
- Nomenclature
- Structural analogues of quinones
- References
- External links
The quinones are a class of organic compounds that are formally "derived from aromatic compounds [such as benzene or naphthalene] by conversion of an even number of –CH= groups into –C(=O)– groups with any necessary rearrangement of double bonds", resulting in "a fully conjugated cyclic dione structure". The archetypical member of the class is 1,4-benzoquinone or cyclohexadienedione, often called simply "quinone" (thus the name of the class). Other important examples are 1,2-benzoquinone ('''ortho-quinone), 1,4-naphthoquinone and 9,10-anthraquinone.
The name is derived from that of quinic acid (with the suffix "-one" indicating a ketone), since it is one of the compounds obtained upon oxidation of quinic acid. Quinic acid, like quinine is obtained from cinchona bark, called quinaquina in the indigenous languages of Peruvian tribes.
Excerpted from Wikipedia’s “quinone” article, available under the CC BY-SA 4.0 licence.