Electrophilic α-oxygenation reaction of β-ketoesters using N-hydroxycarbamates: Control of the ambident reactivity of nitrosoformate intermediates

Abstract:

A copper-catalyzed aminooxylation of β-ketoesters using transient nitrosoformate intermediates is reported. The transformation is highly practical, efficient and highlights the ambident reactivity of nitrosocarbonyl compounds through a rare example of a nitrosocarbonyl aldol reaction. Along with a broad substrate scope, the reaction conditions that help control the regiochemistry are explored and the use of N-carbamate protected hydroxylamine is showcased by subsequent one-pot annulation reactions.

Año de publicación:

2013

Keywords:

Fuente:

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