A simple entry towards novel bi- and tricyclic N-oxy-beta-lactams by high pressure promoted tandem [4+2]/[3+2] cycloadditions of enol ethers and beta-nitrostyrene
Kuster GJ, Kalmoua F, de Gelder R, Scheeren HW
CHEMICAL COMMUNICATIONS (9): 855-856 MAY 7 1999

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