title: Iodobenzene catalysed synthesis of spirofurans and benzopyrans by oxidative cyclisation of vinylogous esters.
abstract: Vinylogous esters bearing para or meta methoxy benzyl groups undergo oxidative cyclisation with 5-20 mol% iodobenzene and m-CPBA to give spirofuran or benzopyran containing heterocycles. The reaction allows rapid generation of skeletal complexity in good to excellent yields via a novel oxidative cyclisation.
authors.affiliation: School of Chemistry, Monash University, Clayton, Melbourne, VIC 3800, Australia.
authors.forename: Marsewi
authors.initials: M
authors.lastname: Ngatimin
authors.forename: Raphael
authors.initials: R
authors.lastname: Frey
authors.forename: Cecily
authors.initials: C
authors.lastname: Andrews
authors.forename: David W
authors.initials: DW
authors.lastname: Lupton
authors.forename: Oliver E
authors.initials: OE
authors.lastname: Hutt