title: Multicatalytic processes using diverse transition metals for the synthesis of alkenes.
abstract: A series of cascade processes for the synthesis of alkenes from alcohols is described. Each individual step is catalyzed with a specific transition metal complex. The oxidation-methylenation one-pot procedure took place in the presence of a palladium and a rhodium catalyst to produce the desired terminal alkenes in high yields. A methylenation-ring-closing metathesis allowed the synthesis of cyclic alkenes from carbonyl derivatives, using the second-generation metathesis catalyst. Finally, an oxidation-methylenation-RCM process that involves up to three different transition metal catalysts in the same vessel is presented.
authors.affiliation: Département de chimie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec, Canada H3C 3J7. lebelhe@chimie.umontreal.ca
authors.forename: Hélène
authors.initials: H
authors.lastname: Lebel
authors.forename: Valérie
authors.initials: V
authors.lastname: Paquet