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Reaction with Ammonia

The reaction of halogenoalkanes with ammonia is a nucleophilic substitution. The halogenoalkane is heated with ammonia in a sealed tube to form a primary amine. The first step produces a salt and the second step is the reaction of excess ammonia with the salt.

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Specification: OCR Chemistry A (H432), A-level, 4.2.2 Haloalkanes. Topic: Halogenolkanes.

Key terms in this lesson

nucleophilic substitution
A reaction mechanism in which a nucleophile donates a lone pair of electrons to an electron-deficient carbon atom, displacing a leaving group.

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