Identify the missing reactant in the following reaction: $(?) + H^+ \xrightarrow{H_2O} \text{Salicylic acid} + CH_3COCH_3$
(A) The given reaction represents the acid-catalyzed hydrolysis of cumene hydroperoxide.
Cumene hydroperoxide undergoes rearrangement in the presence of an acid to form phenol and acetone $(CH_3COCH_3)$.
However,the product shown in the image is salicylic acid ($2$-hydroxybenzoic acid) along with acetone.
This specific reaction is the industrial preparation of salicylic acid from a substituted cumene hydroperoxide derivative,specifically $o$-carboxycumene hydroperoxide.
The missing reactant is $o$-carboxycumene hydroperoxide.
Cumene hydroperoxide undergoes rearrangement in the presence of an acid to form phenol and acetone $(CH_3COCH_3)$.
However,the product shown in the image is salicylic acid ($2$-hydroxybenzoic acid) along with acetone.
This specific reaction is the industrial preparation of salicylic acid from a substituted cumene hydroperoxide derivative,specifically $o$-carboxycumene hydroperoxide.
The missing reactant is $o$-carboxycumene hydroperoxide.
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The increasing order of $pKa$ values of the following compounds is:
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View SolutionGive the structures and $IUPAC$ names of monohydric phenols of molecular formula,$C_{7}H_{8}O$.
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| Column-$I$ (Reaction) | Column-$II$ (Product) |
|---|---|
| $(A)$ Dinitration of $4$-methylphenol | $(i)$ $2$-nitro-$4$-methylphenol + $2$-nitro-$5$-methylphenol |
| $(B)$ Mononitration of phenyl ethanoate | $(ii)$ $2,4$-dinitro-$5$-methylphenol |
| $(C)$ Dinitration of $3$-methylphenol | $(iii)$ $4$-nitrophenyl ethanoate |
| $(D)$ Mononitration of $3$-methylphenol | $(iv)$ $2,6$-dinitro-$4$-methylphenol |
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Reason $R$: Phenols react with halogen acids violently.
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Reason $R$: Phenols react with halogen acids violently.
In the light of the above statements,choose the most appropriate from the options given below:
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$II$: $p$-Methoxyphenol
$III$: $p$-Nitrophenol
$IV$: $m$-Nitrophenol
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