Which one is most reactive towards nucleophil | vedclass

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

Question

(D) The reactivity of carbonyl compounds towards nucleophilic addition reactions is primarily governed by the electrophilicity of the carbonyl carbon.

Vedclass · Accepted Answer

$p$-Nitrobenzaldehyde

Vedclass · Answer

(D) The reactivity of carbonyl compounds towards nucleophilic addition reactions is primarily governed by the electrophilicity of the carbonyl carbon.$1$. Electron-withdrawing groups ($-I, -M$ effects) increase the positive charge on the carbonyl carbon,thereby increasing its reactivity towards nucleophilic attack.$2$. Electron-donating groups ($+I, +M$ effects) decrease the positive charge on the carbonyl carbon,thereby decreasing its reactivity.$3$. Steric hindrance also plays a role; aldehydes are generally more reactive than ketones due to less steric hindrance.Comparing the given compounds:- $p$-Nitrobenzaldehyde has a strong electron-withdrawing $-NO_2$ group ($-I, -M$ effect),which significantly increases the electrophilicity of the carbonyl carbon.- Benzaldehyde has no substituent.- $p$-Methylbenzaldehyde has an electron-donating $-CH_3$ group ($+I$ effect).- Acetophenone is a ketone and has an electron-donating $-CH_3$ group attached to the carbonyl carbon,making it the least reactive.Thus,the order of reactivity is: $p$-Nitrobenzaldehyde > Benzaldehyde > $p$-Methylbenzaldehyde > Acetophenone.Therefore,$p$-Nitrobenzaldehyde is the most reactive.

Which one is most reactive towards nucleophilic addition reaction?

Similar Questions

Keto-enol tautomerism is observed in which of the following?

Which of the following does not give alcohol with $NaBH_4$?

The major product $X$ formed in the following reaction is:

Only an aldehyde having..... can undergo the aldol condensation.

The mixed aldol products obtained from the aldol condensation of ethanal $(CH_3CHO)$ and propanone $(CH_3COCH_3)$ are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module