Unprecedented formation of a cyclic tetramer from the acidolysis of indene ozonide. Isolation and characterisation of a novel dodecaoxacycloicosane derivative
Abstract
Treatment of indene ozonide with chlorosulfonic acid in methylene chloride at 0 °C affords a crystalline tetramer of the ozonide, the structure of which is shown by X-ray crystallographic analysis to contain a novel 20-membered dodecaoxacycloicosane ring system.