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quinomethanes definition

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Methylidenecyclohexadienones and dimethylidenecyclohexadienes, formally derived from quinones by replacement of one or both of the quinone oxygens by methylidene groups. (The diradical, triplet state of quinodimethanes can also be called o- or p-xylylenes).

p-quinomethane, p-quinodimethane

See also:

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