Rauhut–Currier Reaction of Nitroalkenes with Vinyl Sulfones

Abstract

The Rauhut-Currier reaction between nitroalkenes and vinyl sulfones has been successfully carried out for the first time. The reaction proceeds in the presence of an imidazole/LiCl catalyst system in dioxane to provide the adducts possessing a synthetically useful 1-bis-sulfonyl-3-nitroalkene moiety in good to excellent yield. A one-pot transformation of the products to β-sulfonyl-α,β-unsaturated ketoximes has also been demonstrated.