1,4-Dioxene in organic synthesis: Introduction of a second carbon-carbon bond with simultaneous opening of the dioxene ring

Article abstract of DOI:10.1016/0040-4039(94)02387-Q

Treatment of the acetal 5, readily prepared from 2,6,6-trimethyl-2-(1,4-dioxenyl)-1-cyclohexene 3, with carbon nucleophiles in the presence of Lewis acid leads to the formation of a new carbon-carbon bond with simultaneous cleavage of the dioxene ring.