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Question
Arrange the following in increasing order of their basic strength :
Solution
Reason:-
The -CH3 group will increase the electron density on the benzene ring because of its +I effect, while the NO2 group will decrease the electron density on the benzene ring because of its ‒I effect. Hence, the C6H5-NH2 molecule having -CH3 group will be more basic than C6H5-NH2. Also, it will be more basic than the C6H5-NH2 molecule with the NO2 group.
RELATED QUESTIONS
Identify the weakest base amongst the following :
(a) p- methoxyaniline
(b) o-toluidine
(c) benzene - 1, 4 - diamine
(d) 4 - aminobenzoic acid
- Write structures of different isomeric amines corresponding to the molecular formula C4H11N.
- Write the IUPAC names of all the isomers.
- What type of isomerism is exhibited by different pairs of amines?
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Complete the following acid-base reaction and name the product:
\[\ce{(C2H5)3N + HCl ->}\]
Account for the following:
Gabriel phthalimide synthesis is preferred for synthesising primary amines.
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C6H5NH2, C6H5NHCH3, C6H5N(CH3)2
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A compound Z with molecular formula \[\ce{C3H9N}\] reacts with \[\ce{C6H5SO2Cl}\] to give a solid, insoluble in alkali. Identify Z.
Write short note on the following:
Ammonolysis
