Perkin Condensation
When an aromatic aldehyde with no α – hydrogen is treated with aliphatic acid anhydride having at least two α – hydrogen like acetic anhydride in presence of Sodium salts of respective acid produces a α-β unsaturated acid called Cinnamic acid. This condensation is known as Perkin Condensation.
Aldol Condensation
When aldehydes and ketones with α – hydrogen react with each other in presence of dil NaOH, β – hydroxyaldehyde or β – hydroxyketone is formed. This process of condensation of aldehydes to produce a compound with functional groups –OH and –CHO is known as aldol condensation.
Benzoin Condensation
When benzaldehydes react with each other in presence of alco. KCN, then a compound is produced called benzoin and this condensation is known as Benzoin condensation. This condition is reversible by nature.
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