Does acetone undergo aldol condensation?
In the presence of an appropriate base, acetone can undergo self-aldol condensation to an alpha-beta unsaturated ketone. The base will react with acetone to generate an enolate which will react with another molecule of acetone to accomplish the self-aldol condensation.
Which is aldol condensation product of acetone?
4-hydroxy-4-methylpentan-2-one.
What happens when acetaldehyde reacts with acetone?
Solution : Acetone generates carbanion because carbonyl group of acetaldehyde acts as a better nucleophile acceptor than acetone.
Does acetone react with aldehyde?
In this reaction, two molecules of benzaldehyde (aldehyde) are condensed with one molecule of acetone (ketone). Acetone acts as a nucleophile which adds to the carbonyl carbon of benzaldehyde). The first step in the reaction is to form the nucleophile, which is an enolate ion (Figure 2).
Why does acetone not undergo self condensation?
It is common practice in such a condensation reaction to select one carbonyl component which lacks α -Hydrogen atoms. Such a ketone/aldehyde cannot enolise and hence can’t act as the nucleophile in the reaction.
What happens when acetone undergoes?
When treated with Ba(OH)2, acetone undergoes aldol condensation to form diacetone alcohol.
What happens when acetone undergoes aldol condensation write the reaction and name of the products?
Which aldehyde can undergo self-condensation?
Hint:Aldehydes having α -hydrogen undergo self-condensation on warming with dilute or mild base to give β -hydroxy aldehydes, called aldols (aldehyde + alcohol). This reaction is known as aldol condensation.
When acetone under goes condensation reaction the following compound is obtained?
When acetone is treated with Ba(OH)2, it gives diacetone alcohol. In this reaction two molecules of acetone condense. It is an aldol condensation reaction.
Does primary amine catalyze condensation of aldehydes and ketones?
Vol. 24, No. 2 (2012) Aldol Condensations of Aldehydes and Ketones Catalyzed by Primary Amine on Water 753 β-hydroxy ketones, precursors of condensation adducts, 4-
Can aldehydes without alpha carbon and alpha hydrogen do aldol condensation?
Aldehydes without alpha carbon and alpha hydrogen does not have the ability to do aldol condensation. As examples, formaldehyde and benzaldehyde can be given. Formaldehyde does not have alpha carbon and benzaldehyde does not have alpha hydrogen.
What happens when aldehydes and ketones are mixed together?
This reaction doubles the number of carbon atoms of initial aldehyde or ketone. To dehydrate the aldol compound, it is heated alone or with I 2. If two or more aldehydes or ketones are mixed together with strong alkali, it gives a product mixture, not a single product.
What is propanone aldol condensation?
Propanone aldol condensation. Propanone is a ketone. Propanone contains three carbon atoms. After aldol condensation of propanone , there are six carbon atoms in the carbon chain. First gives the aldol product with dilute NaOH or KOH. Then aldol product is heated alone or heated with I 2.