MHT CET202013 Oct 2020Morning ShiftChemistryAminesActual

Which of the following is a Gattermann reaction?

Options

AAr N ₂⁺ X ⁻ CuCl / HCl ArCl + N ₂
BAr N ₂⁺ X ⁻ HBF ₄ ArN ₂⁺ BF ₄⁻ ArF + N ₂ + BF ₃
CAr N ₂⁺ X ⁻ Cu / HBr ArBr + N ₂
DAr N ₂⁺ X ⁻ KI ArI + N ₂ + KX

Correct answer

C. Ar N ₂⁺ X ⁻ Cu / HBr ArBr + N ₂

Step-by-step solution

In Gattermann reaction, chlorine or bromine can be introduced in the arene ring by treating the arene diazonium salt solution with corresponding halogen acid in the presence of copper powder.

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