Question

What prevents self-condensation in the Perkin reaction?

Answer 1

Perkin reaction. The Perkin reaction is an organic reaction developed by English chemist William Henry Perkin that is used to make cinnamic acids. It gives an α,β-unsaturated aromatic acid by the aldol condensation of an aromatic aldehyde and an acid anhydride, in the presence of an alkali salt of the acid.

Answer 2

hope this may help.....
The Perkin reactionis an organic  reaction  developed by English chemist William Henry Perkinthat is used to make cinnamic acids. It gives an α,β-unsaturated aromatic acid by the aldol condensation of an aromatic aldehyde and an acid anhydride, in the presence of an alkali salt of the acid.
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