Benzoquinone

Benzoquinone (C₆H₄O₂) is a quinone with a single benzene ring. There are 2 (out of 3 hypothetical) benzoquinones:

1,4-Benzoquinone, most commonly, right image (also para-benzoquinone, p-benzoquinone, para-quinone, or just quinone)
1,2-Benzoquinone, less commonly, left image (also ortho-benzoquinone, o-benzoquinone, ortho-quinone)

1,3-benzoquinone "does not exist, because its structure would be nonplanar and highly strained",^[1] though derivatives are known.

An alkylated p-benzoquinone has been found in the rhizomes of Iris kemaonensis.^[2]

Arene substitution pattern

[1]
Hoeben, WFLM Wilfred (2000). Pulsed corona-induced degradation of organic materials in water (Thesis). Technische Universiteit Eindhoven. doi:10.6100/IR535691.
[2]
Singh, N.; Mahmood, U.; Kaul, V. K.; Gupta, A. P.; Jirovetz, L. (2006). "A new alkylated benzoquinone from rhizomes of Iris kumaonensis". Nat. Prod. Res. 20 (1): 75–78. doi:10.1080/14786410500045721. PMID 16286313. S2CID 38713868.

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[1] [1]
Hoeben, WFLM Wilfred (2000). Pulsed corona-induced degradation of organic materials in water (Thesis). Technische Universiteit Eindhoven. doi:10.6100/IR535691.

[2] [2]
Singh, N.; Mahmood, U.; Kaul, V. K.; Gupta, A. P.; Jirovetz, L. (2006). "A new alkylated benzoquinone from rhizomes of Iris kumaonensis". Nat. Prod. Res. 20 (1): 75–78. doi:10.1080/14786410500045721. PMID 16286313. S2CID 38713868.

[1]

[2]

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Benzoquinone

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See also

References