https://doi.org/10.1351/goldbook.M03819
A cyclohexadienyl derivative formed as
Analogous cationic adducts, such as:
considered to be
Lewis adduct
from a nucleophile (Lewis base
) and an aromatic
or heteroaromatic compound, also called Jackson–Meisenheimer adducts
. In earlier usage the term 'Meisenheimer complex' was restricted to the typical Meisenheimer alkoxide adducts
of nitro-substituted aromatic ethers
, e.g. ![Not defined](/img/inline/M03819-1.png)
![Not defined](/img/inline/M03819-2.png)
reaction intermediates
in electrophilic
aromatic substitution reactions
, are called 'Wheland intermediates', and sometimes, inappropriately, σ-complexes.See also:
σ-adduct