Aldol condensation does not occur between – InterviewSolution

1.	Aldol condensation does not occur between
Answer» two different aldehydes two different ketones an aldehydes and a ketone an aldehyde and an ester Solution :The `alpha`-hydrogens of an aldehyde `(pK_(a)~20)` are more acidic than those of an ester `(pK_(a)~25)`. Therefore, aldehydes form CARBANIONS more readily than esters. Further, due to +R-effect of OR group the ester carbonyl carbon is less electrophilic than that of an aldehyde. as a result, C=O of an aldehyde undergoes nucleophilic attach by the carbanion more readily than C=O of an ester. in other WORDS, aldol condensation does not OCCUR between an aldehyde and an ester.

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