Definition of Arenium. Meaning of Arenium. Synonyms of Arenium

- An arenium ion in organic chemistry is a cyclohexadienyl cation that appears as a reactive intermediate in electrophilic aromatic substitution. For historic...
- In the arenium ion mechanism one reaction partner is protonated to an arenium ion which then attacks the second reaction partner. The arenium ion can...
- to the stability of arenium ions is the energy gain resulting from the strong C-e bond (E = electrophile). The smallest arenium ion is protonated benzene...
- of an acylium center. The reaction is completed by deprotonation of the arenium ion by AlCl4−, regenerating the AlCl3 catalyst. However, in contrast to...
- more stable carbocation. Cyclopropylcarbenium ions, alkenyl cations, and arenium cations have also been observed. As use of the Magic acid system became...
- part of the ring structure. As such it is the radical counterpart of the arenium ion. The parent compound is the phenyl radical C 6H• 5. Aryl radicals are...
- positively charged and delocalized cyclohexadienyl cation, also known as an arenium ion, Wheland intermediate, or arene σ-complex (2b). Many examples of this...
- catalyst to enhance the electrophilicity of the halogen. The formation of the arenium ion results in the temporary loss of aromaticity, which has a higher activation...
- "Nuclear Decay Techniques in Ion Chemistry". (1992) "Proton shifts in gaseous arenium ions and their role in the gas-phase aromatic substitution by free Me3C+...
- Highly Reactive Electrophiles: Structural Characterization of Bowl-Shaped Arenium Carbocations". Angewandte Chemie International Edition. 50 (13): 2971–2974...