| 词条 | Emde degradation |
| 释义 |
| Name = Emde degradation | Type = Degradation reaction | NamedAfter = Hermann Emde | Section3 = {{Reactionbox Identifiers | RSC_ontology_id = 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] This organic reaction was first described in 1909 by the German chemist Hermann Emde and 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
References1. ^{{cite journal | first1=Hermann | last1=Emde | title=Spaltung quartärer Ammoniumsalze durch nascierenden Wasserstoff | journal=Ber. Dtsch. Chem. Ges. | volume=42 | year=1909 | page=2590-2594 | doi=10.1002/cber.190904202169}} {{DEFAULTSORT:Emde Degradation}}2. ^{{cite book | first1=W. | last1=Pötsch | title=Lexikon bedeutender Chemiker | publisher=VEB Bibliographisches Institut Leipzig | year=1989 | isbn=3817110553}} 3. ^{{cite book | first1=M. B. | last1=Smith | first2=J. | last2=March | title=March's Advanced Organic Chemistry | publisher=Wiley | year=2001 | isbn=0-471-58589-0}} 3 : Organic redox reactions|Name reactions|Degradation reactions |
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