Moderate

Which catalyst is used in Friedel-craft alkylation reaction

Correct answer: B. AlCl3

  • A. MgCl2
  • B. AlCl3
  • C. NaF
  • D. CaCl2

Explanation

Friedel-Crafts alkylation is an electrophilic aromatic substitution reaction that utilizes an alkyl halide and a Lewis acid, typically AlCl3, to produce an alkylbenzene. In this reaction, the alkyl halide reacts with the Lewis acid to form an electrophile, which then attacks the aromatic ring to create a new carbon-carbon bond. Option B, AlCl3, is the correct catalyst for this reaction. Options A, C, and D are incorrect as they do not play the role of the Lewis acid catalyst in Friedel-Crafts alkylation reactions.

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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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