Demjanov Rearrangement Mechanism
Demjanov Rearrangement Mechanism: One of the most familiar methods for the generation of carbonium ions is the determination of primary amines by means of nitrous acid. In many cases the initially formed carbonium ion undergo rearrangement to yield the rearranged products. Thus n-propylamine on treatment with nitrous acid yields some n-propyl alcohol together with a major proportion of isopropyl alcohol. This reaction forms the basis of Demjanov's method of expanding and contracting alicyclic ring systems (Demjanov Rearrangement).
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