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Amines

Question
CBSEENCH12011185
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Consider the reaction,
RCHO +NH2NH2 →RCH =N-NH2
What sort of reaction is it?

  • Electrophilic addition elimination reaction

  • Free radical addition-elimination reaction

  • Electrophilic substitution elimination reaction

  • Nucleophilic addition-elimination reaction

Solution

D.

Nucleophilic addition-elimination reaction

RCHO space plus straight N with bold. bold. on top straight H subscript 2 space rightwards arrow RCH equals straight N minus NH subscript 2 space plus straight H subscript 2 straight O
In the above reaction  negative space straight N with bold. bold. on top straight H subscript 2acts as nucleophilic species which adds on carbon. Therefore this is the case of the nucleophilic addition reaction. Simultaneously, a mole of H2O also eliminated. Therefore, overall this reaction is a nucleophilic addition-elimination reaction.

Some More Questions From Amines Chapter

Write IUPAC names of all the isomers.

What type of isomerism is exhibited by different pairs of amines?

How will you convert Benzene into N, N-dimethylaniline?

Arrange the following in increasing order of their basic strength:
C2H5NH2, C6H5NH2, NH3, C6H5CH2NH2 and (C2H5)2NH

Arrange the following in increasing order of their basic strength:
C2H5NH2, (C2H5)2NH, (C2H5)3N, C6H5NH2

Arrange the following in increasing order of their basic strength:
CH3NH2, (CH3)2NH, (CH3)3N, C6H5NH2, C6H5 CH2NH2

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