
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions β written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Neber rearrangement
Introduction
The Neber rearrangement is an organic reaction in which an oxime is converted into an alpha-aminoketone in a rearrangement reaction.[1][2]
The oxime is first converted to a ketoxime tosylate by reaction with tosyl chloride. Added base forms a carbanion which displaces the tosylate group in a nucleophilic displacement to a azirine and added water subsequently hydrolyses it to the aminoketone.
The Beckmann rearrangement is a side reaction.
References
- β Template:JerryMarch
- β P. W. Neber and A. v. Friedolsheim (1926). “Γber eine neue Art der Umlagerung von Oximen”. Justus Liebig’s Annalen der Chemie. 449 (1): 109β134. doi:10.1002/jlac.19264490108.
