Question

27. Aldol condensation does not occur between :
(a) two different aldehydes
(b) two different ketones
(c) an aldehyde and a ketone
(d) an aldehyde and an ester.​

Answer 1

Answer:

Aldol condensation doesn't occur between (d) an aldehyde and an ester.

Explanation:

Aldol condensation takes place in aldehyde and ketones having

atleast one alpha hydrogen.Cross aldol condensation becomes useful when one of the carbonyl compound doesn't contain alpha hydrogen.

Answer 2

Aldol condensation does not occur between an aldehyde and an ester.​

Option (d)

Explanation:

• Aldol condensation involves the reaction between an enol ions and a carbonyl compounds.

• It is followed by the dehydration process.

• It occurs in between the presence of two aldehydes, ketones and a ketone.

• It appears in the composition of β-hydroxy ketone.

• It is used in the pharmaceutical industry.

• It acts as an intermediate for perfumes production.

• In this process, an acid/base catalyst is used.

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