Synthesis of Spiro-bisperoxyketals

Abstract

Syntheses of spirocyclic bis-1,2-dioxolanes, bis-1,2-dioxanes, and bis-1,2-dioxepanes are achieved through intramolecular ketalizations of hydroperoxy ketones or intramolecular alkylations of gem-dihydroperoxides. The spiroperoxides have excellent thermal and chemical stability, and several display promising activity against P. falciparum.