title: Water control over the chemoselectivity of a Ti/Ni multimetallic system: Heck- or reductive-type cyclization reactions of alkyl iodides.
abstract: A versatile Ti/Ni multimetallic protocol is described for the efficient catalysis of two different reactions, namely a Heck- and reductive-type cyclization of alkyl iodides, in the absence or presence of water, respectively. Noteworthy, the versatility of Ti(III) chemistry allows an oxidative ending step under reductive conditions to give Heck-type products, and the good H-atom transfer capabilities of Ti(III)-aqua complexes ensure reductive-type cyclizations.
authors.affiliation: Department of Organic Chemistry, University of Granada, 18071 Granada, Spain.
authors.forename: Alba
authors.initials: A
authors.lastname: Millán
authors.forename: Luis
authors.initials: L
authors.lastname: Álvarez de Cienfuegos
authors.forename: Delia
authors.initials: D
authors.lastname: Miguel
authors.forename: Araceli G
authors.initials: AG
authors.lastname: Campaña
authors.forename: Juan M
authors.initials: JM
authors.lastname: Cuerva