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- #Chemistry Part II Textbook for Class XII
- #NCERT
- #Aldehydes, Ketones and Carboxylic Acids
- #Chemistry
- #CBSE 12 Class
Q 12.17 Complete each synthesis by giving missing starting material, reagent or products.
(vii)
Answers (1)
The given reaction is cross aldol reaction between benzaldehyde and propanal in presence of dil. sodium hydroxide
Aldol condensation occurs in aldehydes having α-hydrogen with a dilute base to give β-hydroxy aldehydes called aldols. This reaction is most commonly known as aldol condensation. If the condensation reaction occurs between two different carbonyl compounds it is called crossed aldol condensation.
Acetophenone has α−H and while benzaldehyde do not have α−H hence give cross-aldol reaction in presence of dil NaOH.
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