Mustard oil test for distinguishing between primary aliphatic and primary aromatic amines?

Can the mustard oil test be used for distinction between primary aliphatic and primary aromatic amines?


An alkyl isothiocyanate is formed when mustard oil is reacted with a primary aliphatic amine. But does mustard oil give a product with aromatic primary amines so as to make a considerable distinction?




No, aromatic primary amines cannot be distinguished from aliphatic amines using mustard oil test because they both give isothiocyanide and the same byproducts (mercury(II) sulfide and hydrochloric acid).


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