Lesson plan
Hydroxyquinone
Hydroxyquinone often refers to a hydroxybenzoquinone, any organic compound with formula which can be viewed as a derivative of a benzoquinone through replacement of one hydrogen atom (H) by a hydroxyl group (-OH). When unqualified, the terms usually mean specifically the compound 2-hydroxy-1,4-benzoquinone, derived from 1,4-benzoquinone. That parent is sometimes simply called quinone, and this is the only hydroxy derivative of it. More generally, the term may refer to any derivative of any quinone (such as 1,2-benzoquinone, 1,4-naphthoquinone or 9,10-anthraquinone), where any number n of hydrogens have been replaced by n hydroxyls. In this case the number n is indicated by a multiplier prefix (mono-, di-, tri-, etc.), and the parent quinone's name is used instead of just "quinone" — as in tetrahydroxy-1,4-benzoquinone. File:Tetrahydroxy-1,4-benzoquinone-2D-skeletal.png|Tetrahydroxy- 1,4-benzoquinone File:Juglone.png|5-Hydroxy- 1,4-naphthoquinone (Juglone) File:Alizaryna.svg|1,2-Dihydroxy- 9,10-anthraquinone (Alizarin) The hydroxyquinones (in the particular or the general sense) include many biologically and industrially important compounds, and are a building block of many medicinal drugs. Hydroxyquinones with hydroxyls adjacent to the ketone groups often exhibit intramolecular hydrogen bonding, which affects their redox properties and their biochemical properties.
Article summary
Hydroxyquinone often refers to a hydroxybenzoquinone, any organic compound with formula which can be viewed as a derivative of a benzoquinone through replacement of one hydrogen atom (H) by a hydroxyl group (-OH). When unqualified, the terms usually mean specifically the compound 2-hydroxy-1,4-benzoquinone, derived from 1,4-benzoquinone. That parent is sometimes simply called quinone, and this is the only hydroxy derivative of it. More generally, the term may refer to any derivative of any quinone (such as 1,2-benzoquinone, 1,4-naphthoquinone or 9,10-anthraquinone), where any number n of hydrogens have been replaced by n hydroxyls. In this case the number n is indicated by a multiplier prefix (mono-, di-, tri-, etc.), and the parent quinone's name is used instead of just "quinone" — as in tetrahydroxy-1,4-benzoquinone. File:Tetrahydroxy-1,4-benzoquinone-2D-skeletal.png|Tetrahydroxy- 1,4-benzoquinone File:Juglone.png|5-Hydroxy- 1,4-naphthoquinone (Juglone) File:Alizaryna.svg|1,2-Dihydroxy- 9,10-anthraquinone (Alizarin) The hydroxyquinones (in the particular or the general sense) include many biologically and industrially important compounds, and are a building block of many medicinal drugs. Hydroxyquinones with hydroxyls adjacent to the ketone groups often exhibit intramolecular hydrogen bonding, which affects their redox properties and their biochemical properties.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.