Which of the following reactions will not tak | vedclass

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Question

(B) The reaction $ArN_2^{\oplus} + PhOH \rightarrow Ar-OH$ is incorrect as written. The coupling reaction between a diazonium salt and phenol $(PhOH)$

Vedclass · Accepted Answer

$ArN_2^{\oplus} + PhOH \rightarrow Ar-N=N-Ph-OH$

Vedclass · Answer

(B) The reaction $ArN_2^{\oplus} + PhOH \rightarrow Ar-OH$ is incorrect as written. The coupling reaction between a diazonium salt and phenol $(PhOH)$ produces an azo dye,specifically $p$-hydroxyazobenzene $(Ar-N=N-C_6H_4-OH)$,not a phenol $(Ar-OH)$.Option $A$ is the Sandmeyer reaction,which is valid.Option $C$ is the reduction of diazonium salt using hypophosphorous acid $(H_3PO_2)$,which is valid.Option $D$ is the standard method for preparing aryl iodides,which is valid.

Which of the following reactions will not take place?

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