[3 + 2] Cycloaddition of aza-oxyallyl cations with aldehydes†
Abstract
We report here the [3 + 2] cycloaddition reactions of in situ-generated aza-oxyallyl cations with commercially available α,β-unsaturated aldehydes or aldehydes, providing a rapid and efficient synthetic approach to access a variety of oxazolidin-4-ones in high yields.