Cycloadditions of Ynamines with α,β-Unsaturated Sulfones: Approach to Versatile Four-Membered Carbocyclic Intermediates

Article abstract of DOI:10.1021/jo00347a059

The interaction of ynamines with various α,β-unsaturated sulfones, such as 1-alkenyl, 1-alkynyl, or 1,3-alkadienyl sulfones, leads to the ready formation of the vicinally amino- and sulfonyl-substituted cyclobuta ring in a regiospecific manner.The resulti