Which reagent from the following is used in t | vedclass

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(B) When phenol reacts with chloroform $(CHCl_3)$ in the presence of an aqueous base ($NaOH$ or $KOH$),an aldehyde $(-CHO)$ group is introduced into t

Vedclass · Accepted Answer

$CHCl_3, \ aq. \ NaOH, H_3O^{+}$

Vedclass · Answer

(B) When phenol reacts with chloroform $(CHCl_3)$ in the presence of an aqueous base ($NaOH$ or $KOH$),an aldehyde $(-CHO)$ group is introduced into the benzene ring at the ortho position to the phenolic group,resulting in the formation of salicylaldehyde. This reaction is known as the Reimer-Tiemann reaction. The chemical equation is: $C_6H_5OH + CHCl_3 + 3KOH \rightarrow C_6H_4(OH)CHO + 3KCl + 3H_2O$.

Acid	$pKa$
$(a)$ Phenol	$(i)$ $16$
$(b)$ $p$-Nitrophenol	$(ii)$ $0.78$
$(c)$ Ethanol	$(iii)$ $10$
$(d)$ Picric acid	$(iv)$ $7.1$

Which reagent from the following is used in the Reimer-Tiemann reaction?

Similar Questions

Match the following $pKa$ values:
Acid $pKa$
$(a)$ Phenol $(i)$ $16$
$(b)$ $p$-Nitrophenol $(ii)$ $0.78$
$(c)$ Ethanol $(iii)$ $10$
$(d)$ Picric acid $(iv)$ $7.1$

The gases evolved in reactions $(I)$ and $(II)$ are.......

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