The number of aldol reaction(s) that occurs i | vedclass

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(C) The reaction of $CH_3CHO$ with $4HCHO$ in the presence of $conc. aq. NaOH$ proceeds through a series of steps. $1$. The first step is an aldol con

Vedclass · Accepted Answer

$3$

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(C) The reaction of $CH_3CHO$ with $4HCHO$ in the presence of $conc. aq. NaOH$ proceeds through a series of steps. $1$. The first step is an aldol condensation between $CH_3CHO$ and $HCHO$ to form $HOCH_2-CH_2-CHO$. $2$. The second step is another aldol condensation with $HCHO$ to form $(HOCH_2)_2CH-CHO$. $3$. The third step is a final aldol condensation with $HCHO$ to form $(HOCH_2)_3C-CHO$. $4$. The final step is a Cannizzaro reaction where the aldehyde group is reduced to an alcohol group,resulting in pentaerythritol $(HOCH_2)_4C$. Thus,there are $3$ aldol reactions involved in the transformation.

The number of aldol reaction$(s)$ that occurs in the given transformation is :

Similar Questions

Acetaldehyde reacts with semicarbazide,the product will be:

The carbonyl compound that does not undergo aldol condensation is

The correct order of rate of reaction toward nucleophilic addition reaction for the following compounds is:
$(a)$ $p-NO_2-C_6H_4-CHO$
$(b)$ $C_6H_5-CHO$
$(c)$ $p-OMe-C_6H_4-CHO$
$(d)$ $CH_3-CO-CH_2CH_3$
$(e)$ $C_6H_5-CO-C_6H_5$

The appropriate reagent for the following transformation is:
(Reactant: $3-$hydroxycyclopentyl methyl ketone; Product: $3-$hydroxycyclopentyl ethyl group)

Identify the product obtained when a ketone reacts with hydrazine $(NH_2-NH_2)$.

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