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The reactions of
amines with acyl chlorides (acid chlorides)
We'll take the
reaction between methylamine and ethanoyl chloride as typical.
If you add
concentrated methylamine solution to ethanoyl chloride, there is a violent
reaction in the cold. N-methylethanamide and methylammonium chloride are
formed -
partly as a white solid mixture, and partly in solution.
The overall equation
is:
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The reactions of
amines with acid anhydrides
These reactions are
chemically similar to those between amines and acyl chlorides, but
they are
much slower, needing heat.
Taking the reaction
between methylamine and ethanoic anhydride as typical:
The product is
N-methylethanamide (as with ethanoyl chloride), but this time the other
product is methylammonium ethanoate rather than methylammonium chloride.
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Saturday 29 April 2017
The reactions of amines with acyl chlorides (acid chlorides)
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