Moderate

What is the electrophile in the acylation of benzene

Correct answer: D. R-CO+

  • A. AlCl3
  • B. CO+
  • C. Cl+
  • D. R-CO+

Explanation

In the acylation of benzene, the correct electrophile is R-CO+. This is formed when an acyl chloride reacts with a Friedel-Crafts catalyst like aluminum chloride. R-CO+ is a stable species that can effectively attack the benzene ring, making it the electrophile in this reaction. The other options, AlCl3, CO+, and Cl+, are not the correct electrophiles as they are either unstable or highly reactive species that do not effectively participate in the acylation of benzene.

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About Chemistry of Hydrocarbons

Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.

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