What is the product of this aldol reaction?
An aldol condensation is a condensation reaction in organic chemistry in which an enol or an enolate ion reacts with a carbonyl compound to form a β-hydroxyaldehyde or β-hydroxyketone (an aldol reaction), followed by dehydration to give a conjugated enone.
Which of the following is the aldol condensation product of Butanal?
Treatment of butanal in the presence of strong base forms a resonance-stabilized enolate ion, which is reacted with another molecule of butanal followed by the hydrolysis gives 2-ethyl-3-hydroxyhexanal. Thus, the reaction is as follows: Therefore, the formed aldol product is 2-ethyl-3-hydroxyhexanal.
What is a beta hydroxy aldehyde?
β-Hydroxy aldehyde (Beta-hydroxy aldehyde): A molecule containing a hydroxyl group bonded to the beta carbon of an aldehyde. General β-hydroxy aldehyde structure. 3-Hydroxy-3-methylbutanal, a typical β-hydroxy aldehyde.
What is product of beta hydroxy aldehyde?
The product formed for aldol condensation is called β-hydroxy aldehyde or β-hydroxy ketone.
Which Carbohydrateanion is formed in aldol condensation?
Aldol Condensation can be defined as an organic reaction in which enolate ion reacts with a carbonyl compound to form β-hydroxy ketone or β-hydroxy aldehyde, followed by dehydration to give a conjugated enone.
Does propanal give aldol condensation?
The carbonyl compounds must contain an α− hydrogen atom to undergo aldol condensation. Thus, propanal and ethanal are the aldehydes that can undergo aldol condensation.
What does aldol mean?
Definition of aldol : a colorless beta-hydroxy aldehyde C4H8O2 used especially in organic synthesis broadly : any of various similar aldehydes.
Does butanal undergo aldol condensation?
It will not undergo aldol condensation as a compound must have at least one acidic alpha hydrogen to make enolate ion( the nucleophile in aldol reaction) which is not present in this compound.
What is alpha hydrogen in aldol condensation?
Aldol Condensation, in organic chemistry, is a condensation reaction of enol aka enolate and carbonyl compound. And Alpha-hydrogen atom is an atom in which the hydrogen atom is reacted with the alpha-carbon atom. …
Is aldol condensation an acid or base reaction?
Answer: Aldol condensation is an organic reaction in which an enolate ion reacts with carboxyl compound in order to form a β– hydroxyaldehyde or β– hydroxyketone. Hydroxide functions as a base and therefore moves the acidic a-hydrogen producing the reactive enolate ion. This reaction can be seen as an acid-base reaction.
What is a crossed aldol reaction?
The condensation reaction between two different molecules of an aldehyde or ketone in a protic solvent such as water or alcohol constitutes the crossed aldol reaction. When condensation is between two different carbonyl compounds, it is called crossed aldol condensation.
What is the best book for aldol condensation?
For studying aldol condensation one can follow the NCERT chemistry textbook part-2 for class 12. The chapter named ‘Aldehydes, Ketones and Carboxylic acids’ in this book contains this process. What is crossed aldol condensation?
What happens when aldehydes and ketones are treated with dilute alkali?
Answer: When aldehydes and ketones having at least one α-hydrogen are treated with dilute alkali (which act as a catalyst) they form β-hydroxyaldehydes (aldol) or β-hydroxyketones (ketol) respectively. This reaction is known as aldol condensation.