Intramolecular oxonium ylide formation-[2,3] sigmatropic rearrangement of diazocarbonyl-substituted cyclic unsaturated acetals: a formal synthesis of hyperolactone C. (Journal of organic chemistry, 2014)

(untitled) - Hodgson, D; Man, S; Powell, K; Perko, Z; Zeng, M; Moreno-Clavijo, E; Thompson, A; Moore, MD