aromatic ring

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aromatic ring

chemistry

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aromatic compounds

In chemical compound: Aromatic hydrocarbons (arenes)
The hexagonal ring is usually drawn with an alternating sequence of single and double bonds. The molecule benzene, C₆H₆, first discovered by English physicist and chemist Michael Faraday in 1825, is the smallest molecule that can contain this functional group, and arenes contain one or more benzene…
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aryl halides

In organohalogen compound: Halogenation
…a compound that contains an aromatic ring with chlorine or bromine in the presence of a catalyst, typically iron (Fe) or an iron(III) halide (FeX₃), brings about electrophilic aromatic substitution of one of the ring hydrogen atoms by the halogen.
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