Which of the following is expected to be the | vedclass

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

Question

(B) The basicity of amines depends on the availability of the lone pair of electrons on the nitrogen atom. $1$. $CH_3CH_2CH_2NH_2$ (n-propylamine) is

Vedclass · Accepted Answer

$2-$aminoacetophenone

Vedclass · Answer

(B) The basicity of amines depends on the availability of the lone pair of electrons on the nitrogen atom. $1$. $CH_3CH_2CH_2NH_2$ (n-propylamine) is an aliphatic amine,where the lone pair is readily available for protonation. $2$. $(CH_3)_3N$ (trimethylamine) is also an aliphatic amine with high electron density on nitrogen due to the inductive effect of three methyl groups. $3$. Aniline $(C_6H_5NH_2)$ is less basic because the lone pair on nitrogen is involved in resonance with the benzene ring. $4$. $2-$aminoacetophenone has an $-NH_2$ group attached to a benzene ring which also has an electron-withdrawing acetyl group $(-COCH_3)$ at the ortho position. The $-COCH_3$ group exerts a strong $-I$ and $-M$ effect,which significantly reduces the electron density on the nitrogen atom,making it the least basic among the given options.

Which of the following is expected to be the least basic?

Similar Questions

Which of the following compounds will not undergo an azo coupling reaction with benzene diazonium chloride?

Which of the following statements is incorrect for primary amines?

When $R-CO-NH_2$ is treated with $Br_2$ and $KOH$,it gives $R-NH_2$ as the major product. Which intermediate is involved in this reaction?

Amines behave as

Primary nitro alkanes are obtained in good yield by oxidising aldoximes with the help of $-$

Vedclass Test Series

Exam Paper Generator

Online Exam Module