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AP EAMCET202120 Aug 2021Morning ShiftChemistryAlcohols Phenols and EthersActual

Identify ( Z ) in the following reaction: CH 3 COOH ⟶ LiAlH 4 ( X ) 573   K Cu ( Y ) ⟶   dil . NaOH   ( Z )

Options

  1. AAldol
  2. BKetol
  3. CAcetol
  4. DButanol

Correct answer

A. Aldol

Step-by-step solution

LiAlH 4 can reduce the carboxylic acid into the alcohol. So, the acetic acid is converted into the ethanol by LiAlH 4 in reaction X . Copper is an oxidising agent. It can oxidise the alcohol to the aldehyde. So, it oxidises the ethanol to the ethanal in reaction Y . The ethanal has the alpha hydrogen. So, the weak base will take the acidic hydrogen. It will form the carbanion. After that the carbanion will give the nucleophilic addition reaction with another mole of ethanal. The β -hydroxylcarbonyl compound is

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