Write the reactions involved in the following : (i) Reimer-Tiemann reaction (ii) Kolbe's reaction

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TextReimer-Tiemann Reaction of PhenolCBSE PYQ

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TextPreparation of Alcohols from Alkenes by HydrationAcidic Nature of PhenolsElectrophilic Substitution Reactions of PhenolsKolbe's Reaction of Phenol

Reimer-Tiemann Reaction of Phenol

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TextPreparation of Alcohols from Alkenes by HydrationAcidic Nature of PhenolsElectrophilic Substitution Reactions of PhenolsKolbe's Reaction of PhenolReimer-Tiemann Reaction of PhenolWilliamson Synthesis of EthersCleavage of Carbon-Oxygen Bond in Ethers

Why is p-nitrophenol more acidic than phenol ?

TextPreparation of Alcohols from Alkenes by HydrationAcidic Nature of PhenolsElectrophilic Substitution Reactions of PhenolsKolbe's Reaction of PhenolReimer-Tiemann Reaction of PhenolWilliamson Synthesis of EthersCleavage of Carbon-Oxygen Bond in Ethers

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TextPreparation of Alcohols from Alkenes by HydrationAcidic Nature of PhenolsElectrophilic Substitution Reactions of PhenolsKolbe's Reaction of PhenolReimer-Tiemann Reaction of PhenolWilliamson Synthesis of EthersCleavage of Carbon-Oxygen Bond in Ethers

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TextPreparation of Alcohols from Alkenes by HydrationAcidic Nature of PhenolsElectrophilic Substitution Reactions of PhenolsKolbe's Reaction of PhenolReimer-Tiemann Reaction of PhenolWilliamson Synthesis of EthersCleavage of Carbon-Oxygen Bond in Ethers

Phenols undergo electrophilic substitution reactions readily due to the strong activating effect of OH group attached to the benzene ring. Since, the OH group increases the electron density more to o– and p– positions, therefore OH group is ortho, para-directing. Reimer-Tiemann reaction is one of the examples of aldehyde group being introduced on the aromatic ring of phenol, ortho to the hydroxyl group. This is a general method used for the ortho-formylation of phenols. Answer the following questions:

CASE_STUDIESAcidic Nature of PhenolsElectrophilic Substitution Reactions of PhenolsReimer-Tiemann Reaction of Phenol