Emde degradation

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Emde degradation
Named after Hermann Emde
Reaction type Degradation reaction
Identifiers
RSC ontology ID RXNO:0000147

The Emde degradation (also called Emde-reaction or Emde-reduction) is a method for the reduction of a quaternary ammonium cation to a tertiary amine with sodium amalgam:[1][2][3]

Emde-degradation
Emde-degradation

This organic reaction was first described in 1909 by the German chemist Hermann Emde. It was for a long time of great importance in structure elucidation of many alkaloids, for example that of ephedrine.

Alternative reducing agents exist for this reaction; for instance, lithium aluminium hydride.

See also

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References

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