BRAINCAKEReaction with Ammonia
Halogenoalkanes react with ammonia to form primary amines. The halogenoalkane is heated with excess concentrated ammonia in ethanol in a sealed tube, so that the ammonia gas cannot escape.
Ammonia is a nucleophile because the nitrogen atom has a lone pair. The lone pair attacks the δ+ carbon and the halide ion leaves, forming an alkylammonium ion.
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More in Halogenoalkanes
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- Uses of Nucleophilic Substitution
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All 16 lessons in Halogenoalkanes · All AQA AS-level Chemistry topics