Thu April 09, 2015 By: Sweta S

Could you explain me the following reactions :
1. Perkin Reaction
2. Michael Addition?

Expert Reply
Prachi Sawant
Fri April 10, 2015

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Solution for your first query,

Perkin reaction

 Aromatic aldehydes on reaction with aliphatic acid anhydrides in presence of sodium salt of the same acid as base, to form condensation products whch upon hydrolysis give ⍺, β-unsaturated acids. This reaction is called perkin condensation. For example, when benzaldehyde is heated with acetic anhydride in presence of sodium acetate, the product thus formed on hydrolysis gives cinnamic acid.




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