title: Synthesis of spiroketals under neutral conditions via a type III ring-rearrangement metathesis strategy.
abstract: A conceptually novel approach to spiro- and dispiroketals of various ring-sizes under neutral conditions has been designed which complements the classical thermodynamically driven tactic. Key steps involved the formation of α-alkoxyfurans, their [4+2] or [4+3] cycloaddition reactions and the ring-rearrangement metathesis of the resulting oxabicycles.
authors.affiliation: Université de Haute-Alsace, Ecole Nationale Supérieure de Chimie de Mulhouse, Laboratoire de Chimie Organique et Bioorganique EA4566, 3 rue A. Werner, 68093 Mulhouse Cedex, France.
authors.forename: Jérémie
authors.initials: J
authors.lastname: Mandel
authors.forename: Nathalie
authors.initials: N
authors.lastname: Dubois
authors.forename: Markus
authors.initials: M
authors.lastname: Neuburger
authors.forename: Nicolas
authors.initials: N
authors.lastname: Blanchard