title: Tandem cyclization-Michael reaction by combination of metal- and organocatalysis.
abstract: The use of a catalytic amount of platinum complexes (1 mol %) was found to be compatible with different organocatalysts (DABCO or the Jørgensen-Hayashi catalyst) that were used in the functionalization of various activated methylenes. By this method, a series of lactones with C-3 quaternary centers and substitution at C-5 were prepared.
authors.affiliation: Departamento de Química Orgánica (C-1), Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco 28049-Madrid, Spain. jose.aleman@uam.es
authors.forename: José
authors.initials: J
authors.lastname: Alemán
authors.forename: Virginia
authors.initials: V
authors.lastname: del Solar
authors.forename: Cecilia
authors.initials: C
authors.lastname: Martín-Santos
authors.forename: Leticia
authors.initials: L
authors.lastname: Cubo
authors.forename: Carmen
authors.initials: C
authors.lastname: Navarro Ranninger