A simple entry towards novel bi- and tricyclic N-oxy-β-lactams by high pressure promoted tandem [4 + 2]/[3 + 2] cycloadditions of enol ethers and β-nitrostyrene
Abstract
A high pressure promoted tandem [4 + 2]/[3 + 2] cycloaddition of β-nitrostyrene with a variety of enol ethers followed by a base catalysed rearrangement provided a novel class of di- and tricyclic N-oxy-β-lactam compounds.