In the reaction sequence,phenol reacts with H | vedclass

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(B) The reaction of phenol with $HNO_2$ (nitrous acid) leads to the formation of $p$-nitrosophenol,which exists in tautomeric equilibrium with $p$-ben

Vedclass · Accepted Answer

$II$

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(B) The reaction of phenol with $HNO_2$ (nitrous acid) leads to the formation of $p$-nitrosophenol,which exists in tautomeric equilibrium with $p$-benzoquinone monoxime $(X)$.In the presence of $H_2SO_4$,the oxime group acts as an electrophile. The phenol molecule attacks the electrophilic carbon of the oxime group at the para-position to form the final product $Y$,which is an indophenol derivative. Looking at the structures provided in the options,option $II$ correctly represents the structure of $p$-benzoquinone monoxime $(X)$ and the corresponding indophenol product $(Y)$.

In the reaction sequence,phenol reacts with $HNO_2$ to form $X$,which then reacts with phenol in the presence of $H_2SO_4$ to form $Y$. Identify the major products $X$ and $Y$.

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