The compounds A and B are respectively | vedclass

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

Question

(D) $1$. Reaction of benzaldehyde with methanol in the presence of dry $HCl$ gas leads to the formation of an acetal, $A$, which is benzaldehyde dimet

Vedclass · Accepted Answer

$Ph-CH(OMe)_2$ and $Ph-CH=CH-CO_2H$

Vedclass · Answer

(D) $1$. Reaction of benzaldehyde with methanol in the presence of dry $HCl$ gas leads to the formation of an acetal, $A$, which is benzaldehyde dimethyl acetal, $Ph-CH(OMe)_2$.$2$. Treatment of the acetal $A$ with dilute $HCl$ results in its hydrolysis back to benzaldehyde $(Ph-CHO)$ and methanol.$3$. The subsequent reaction of benzaldehyde with acetic anhydride $((CH_3CO)_2O)$ in the presence of sodium acetate $(CH_3COONa)$ is the Perkin condensation reaction, which yields cinnamic acid $(Ph-CH=CH-COOH)$ as the final product $B$.

The compounds $A$ and $B$ are respectively

Similar Questions

Identify appropriate reagents for the above reaction.

Which of the following will give a yellow precipitate with $I_2/NaOH$?

$CH_3-CO-CH_2-COOCH_3$ $\xrightarrow[H_2O]{H^{+}} A$ $\xrightarrow{\Delta} B$ $\xrightarrow{HCN} C$. What are $B$ and $C$?

Which of the following reagents can be used to distinguish between an aldehyde and a ketone?

The most reactive compound towards the formation of cyanohydrin on treatment with $KCN$ followed by acidification is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module