Dehydration in aldol reaction

Both aldol and Claisen reactions are equilibria, and product formation is a result of disturbing these equilibria. This would be dehydration in aldol reactions and ionization in Claisen reactions. Ionization would be the more immediate determinant. On that basis, it is obvious that the 1,3-dicarbonyl products from Claisen reactions are going to be more acidic than the aldol products, which possess just one carbonyl group. 

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See also in sourсe #XX -- [ , ]

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