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...enzene ring highly reactive toward [[electrophile|electrophilic]] aromatic substitution. As the substituents are ortho,para-directing and para with respect to each

...terephthalate]] units. The 1,2-(''ortho-'') or 1,3-(''[[Arene substitution patterns|meta]]''-) linkage produces an angle in the chain, which also disturbs crys

...henyl group]] attached to an [[amino group]] which is [[Arene substitution patterns|para]] to a [[nitro group]]. The [[chemical]] structure of p-nitroaniline i ...e]]. The key step in this reaction sequence is an [[electrophilic aromatic substitution]] to install the nitro group ''para'' to the amino group. After this reacti

...dimethylamino groups are attached on the same side or [[Arene substitution patterns|peri position]] of a [[naphthalene]] system. Proton-sponge has several very

...ith a continuous [[pi bond]]. It is also related to the functional group [[arene]] which is a generalized structure of benzene. ...the ortho, meta, and para patterns of [[Arene substitution patterns|arene substitution]]—to argue in support of his proposed structure. Kekulé's symmetrical ri

Substitution of the expression for [OH⁻] into the expression for ''K''<sub> ...in the [[Arene substitution patterns|''ortho-'']] and [[Arene substitution patterns|''para-'']] positions: some numerical values are in [[Hammett equation]]. T

...metabolite]] of phenylbutazone, differs only in the ''[[arene substitution patterns|para]]'' location of one of its [[phenyl group]]s, where a [[hydrogen]] [[a