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Ammonolysis of alkyl halide does not give corresponding amine in pure state.why?

Ammonolysis of alkyl halide does not give corresponding amine in pure state.why?

Grade:12

1 Answers

Arun
25750 Points
6 years ago
Dear student
 

 

Ammonolysis of alkylhalides does not give a single amine but gives a mixture of primary, secondary and tertiary amines which further react with alkyl halide to form quaternary ammonium salt as follows:

NH3 (alc.) + R-X → R-NH2 + HX

                             1° Amine

R-NH+ R-X→ R2-NH + HX

                          2° Amine

R2-NH + R-X → R3-N + HX

                            3° Amine

R3-N + R-X → R4-N+X-

                       Tetra alkyl ammonium halide

It is difficult to separate this mixture into individual amines therefore, It is difficult to prepare pure amines by ammonolysis of alkylhalides.

 
 

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