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

Complete reduction of $benzene-diazonium$ chloride with $Zn/HCl$ gives:

The increasing order of reactivity of the following compounds towards reaction with alkyl halide is:

$CH_3-C(=O)-NH_2 \xrightarrow[\Delta]{Br_2 + KOH} CH_3-NH_2$. Intermediates of the reaction is/are:

The correct order of basicities of the following compounds is:
$1. CH_3-C(=NH)NH_2$ (Acetamidine)
$2. (CH_3)_2NH$ (Dimethylamine)
$3. CH_3-CH_2-NH_2$ (Ethylamine)
$4. CH_3-CONH_2$ (Acetamide)

Which of the following is the most basic compound?

Vedclass Test Series

Exam Paper Generator

Online Exam Module