A. Padwa et al., APPLICATION OF THE PUMMERER REACTION TOWARD THE SYNTHESIS OF COMPLEX CARBOCYCLES AND HETEROCYCLES, Synthesis, (12), 1997, pp. 1353-1377
In this review, we demonstrate that the Pummerer reaction can be utili
zed for the preparation of complex carbocyclic and heterocyclic ring s
ystems. The generation of thionium ions from sulfoxides and their subs
equent inter-or intramolecular reactions with pi-bonds as an entry to
complex ring systems is described in some detail.