Identify the reagents used for the following | vedclass

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Question

(D) Step $A$: $DIBAL-H$ is used for the selective reduction of the ester group to an aldehyde group without affecting the existing aldehyde or hydroxy

Vedclass · Accepted Answer

$A=DIBAL-H, B=NaOH_{(alc)}, C=Zn / HCl$

Vedclass · Answer

(D) Step $A$: $DIBAL-H$ is used for the selective reduction of the ester group to an aldehyde group without affecting the existing aldehyde or hydroxyl groups.Step $B$: $NaOH_{(alc)}$ is used for the intramolecular aldol condensation of the dialdehyde to form the cyclic $\alpha,\beta$-unsaturated aldehyde.Step $C$: $Zn/HCl$ (Clemmensen reduction) is used to reduce the aldehyde group to a methyl group.Therefore,the correct reagents are $A=DIBAL-H, B=NaOH_{(alc)}, C=Zn/HCl$.

Identify the reagents used for the following conversion:

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