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Grade: 11
        
How to know a compound has alpha hydrogen ? . Explain aldol condensation with explanation .
24 days ago

Answers : (1)

Arun
15903 Points
							
An alpha hydrogen is a hydrogen atom on an alpha carbon in an organic molecule.
 

Analdol condensationis anorganic reactionin which anenolor anenolate ionreacts with acarbonylcompound to form a ß-hydroxyaldehyde or ß-hydroxyketone, followed by adehydrationto give a conjugatedenone.

The first part of this reaction is analdol reaction, the second part a dehydration—anelimination reaction(Involves removal of a water molecule or an alcohol molecule). Dehydration may be accompanied bydecarboxylationwhen an activated carboxyl group is present. The aldol addition product can be dehydrated via two mechanisms; a strongbaselikepotassiumt-butoxide,potassium hydroxideorsodium hydridein anenolatemechanism,[10]or in an acid-catalyzedenolmechanism.

Enol Mechanism:Enolate mechanism
24 days ago
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