A) Butylamine
B) Isobutylamine
C) 2-phenylethylamine
D) N-methylbenzylamine
Correct Answer: D
Solution :
Gabriel synthesis is used for the preparation of primary amines. Butylamine, isobutylamine and 2-phenyl ethylamine are primary amine hence these can be prepared by Gabriels synthesis but N-methyl benzylamine is a secondary amine and therefore, it cannot be prepared by Gabriels synthesis. \[\underset{butyl\text{ }amine\text{ }(1{}^\circ amine)}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}},}}\,\] \[\underset{\begin{smallmatrix} 2-phenyl\text{ }ethyl\text{ }amine \\ \,\,\,\,\,\,\,(1{}^\circ \text{ }amine) \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ {{C}_{6}}{{H}_{5}} \end{smallmatrix}}{\mathop{C{{H}_{2}}}}\,-C{{H}_{2}}-N{{H}_{2}},}}\,\]You need to login to perform this action.
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