Improved Procedure for the Synthesis of Enamine <i>N</i>-Oxides
作者:David Bernier、Alexander J. Blake、Simon Woodward
DOI:10.1021/jo8002166
日期:2008.6.1
An improvedprocedure for the preparation of enamine N-oxides involving aminolysis of epoxides, chlorination, N-oxidation, and dehydrochlorination is described. Although isolated β-chloroamine N-oxides are prone to rearrangements when isolated, these side reactions can be slowed by the presence of stabilizing organic acids. The scope and limitations of this strategy are discussed.