Copper-Catalyzed Aerobic Oxidation of N-Substituted Hydroxylamines: Efficient and Practical Access to Nitroso Compounds
摘要:
A general and efficient aerobic oxidation of N-substituted hydroxylamines is described. The mild reaction conditions employed provide a catalytic and sustainable alternative to stoichiometric oxidation methods to gain access to a range of nitroso compounds, such as acylnitroso, nitrosoformate, nitrosoformamide, iminonitroso, arylnitroso, and P-nitrosophosphine oxide derivatives in excellent yield.
Electrophilic α-Amination Reaction of β-Ketoesters Using <i>N</i>-Hydroxycarbamates: Merging Aerobic Oxidation and Lewis Acid Catalysis
作者:David Sandoval、Charles P. Frazier、Alejandro Bugarin、Javier Read de Alaniz
DOI:10.1021/ja310784f
日期:2012.11.21
The copper-catalyzed α-amination of carbonyl compounds using nitrosoformate intermediates as the electrophilic source of nitrogen is reported. The reaction mergesaerobicoxidation and Lewis acid catalysis. The scope of the reaction is broad in terms of both the N-substituted hydroxylamines and the β-ketoesters. The new methodology harnesses the power of nitrosoformate intermediates and demonstrates