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CBSE Class 12-science Answered

Aldol condensation/
Asked by | 06 Aug, 2012, 04:48: PM
answered-by-expert Expert Answer
Aldol condensation is observed in carbonyl compounds 
The Aldol Condensation of Aldehydes and ketones occur by similar mecanism

  • Reagents : commonly a base such as NaOH or KOH is added to the aldehyde.
  • The reaction involves an enolate reacting with another molecule of the aldehyde.
  • Remember enolates are good nucleophiles and carbonyl C are electrophiles.
  • The products of these reactions are b-hydroxyaldehydes or aldehyde-alcohols = aldols.
  • The simplest aldol reaction is the condensation of ethanal. This is shown below in 2 different representations
  • It may occur via these two mecanisms 
 
Answered by | 06 Aug, 2012, 05:29: PM

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