Which one of the following compounds is the b | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) An efficient mixed aldol addition reaction requires one carbonyl component to have $\alpha$-hydrogens (to act as the nucleophile) and the other ca

Vedclass · Accepted Answer

Vedclass · Answer

(B) An efficient mixed aldol addition reaction requires one carbonyl component to have $\alpha$-hydrogens (to act as the nucleophile) and the other carbonyl component to have no $\alpha$-hydrogens (to act as the electrophile). Formaldehyde $(HCHO)$ is an excellent electrophile because it has no $\alpha$-hydrogens and is highly reactive toward nucleophilic attack. Propiophenone $(C_6H_5COCH_2CH_3)$ has $\alpha$-hydrogens on the $CH_2$ group,allowing it to form an enolate. The reaction between propiophenone and formaldehyde is an efficient mixed aldol reaction. The product formed is $C_6H_5COCH(CH_3)CH_2OH$.

Which one of the following compounds is the best choice for being prepared by an efficient mixed aldol addition reaction?

Similar Questions

The major product of the following reaction is :
$CH_3-CH_2-CHO \xrightarrow[\text{reflux}]{\text{excess } HCHO / \text{alkali}} ?$

The carbonyl compound that does not undergo aldol condensation is

Which of the following compounds will most readily be dehydrated to give an alkene under acidic conditions?

Which of the following reactions converts the carbonyl group of aldehydes and ketones to a methylene group on treatment with zinc amalgam and concentrated $HCl$?

An organic compound $A$ has the molecular formula $C_3H_6O$ and it undergoes the iodoform test. When saturated with dilute $HCl$,it gives $B$ with the molecular formula $C_9H_{14}O$. $A$ and $B$ respectively are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module