Copper/amine-catalyzed formal regioselective [3 + 2] cycloaddition of an α,β-unsaturated <i>O</i>-acetyl oxime with enals

Abstract

A novel copper/amine co-catalyzed formal regioselective [3 + 2] cycloaddition reaction of an <italic>O</italic>-acyl oxime with α,β-unsaturated aldehydes is developed.