The strongest and weakest base should be determined from the given amines . Concept introduction: Amines are the derivatives of ammonia ( N H 3 ) with one or more of the hydrogens replaced with a substituent such as an alkyl group. Due to ability of lone pair in the nitrogen atom to accept a proton, amines are weak base in nature. Factors that affect the basicity of amines are listed below, Substitution by alkyl groups The presence of alkyl groups (electron donating group) such as − C H 3 a n d − C 2 H 5 will make the amine become more basic. Substitution by electron-withdrawing groups The presence of electron-withdrawing groups or atom will decrease the basicity.

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Chapter 16, Problem 16.27UKC

Interpretation Introduction

Interpretation:

The strongest and weakest base should be determined from the given amines.

Concept introduction:

Amines are the derivatives of ammonia (NH3) with one or more of the hydrogens replaced with a substituent such as an alkyl group.

Due to ability of lone pair in the nitrogen atom to accept a proton, amines are weak base in nature.

Factors that affect the basicity of amines are listed below,

Substitution by alkyl groups

The presence of alkyl groups (electron donating group) such as −CH3 and −C2H5 will make the amine become more basic.

Substitution by electron-withdrawing groups

The presence of electron-withdrawing groups or atom will decrease the basicity.

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