primary amines can be converted into secondary amines by reaction with haloalkanes. this reaction is difficult to achieve in the lab because of the large number of byproducts. select the possible products or byproducts of the reaction.
The concept used to solve this problem is the knowledge of nucleophilic substitution reactions.
The Sn2 reaction or the bimolecular nucleophilic substitution reaction is a concerted type of reaction followed by the trigonal bipyramidal-shaped transition state which results in the formation of the product of inverted stereochemistry.
Fundamentals
Nucleophilic substitution reaction involves the primary attack of a nucleophile to the sigma square antibonding orbital of the carbon of alkyl halide, which in effect attach the nucleophile to that carbon and the removal of the halogen as a leaving group.
Attack of lone pair of nitrogen of substituted ammonia to the carbon-halogen bond of the halogen alkane. The initial attack is shown below.
Attack of the substituted ammonia acts as a base and abstracts proton from the alky ammonium halide salt to form the secondary amine. The attack of substituted ammonia is shown below
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