The synthesis of a polyoxygenated decalin (2) with limonoid structural homology, common to salannin and azadirachtin, has been completed using an efficient intramolecular Diels- Alder cycloaddition. © 1988.
Brasca, M. G., Broughton, H. B., Craig, D., Ley, S. V., Somovilla, A. A., & Toogood, P. L. (1988). Chemistry of insect antifeedants from azadirachta indica (part 2): Synthesis of a polyoxygenated decalin with limonoid structural homology. Tetrahedron Letters, 29(15), 1853–1856. https://doi.org/10.1016/S0040-4039(00)82062-6