title: Role of quaternary ammonium salts as new additives in the enantioselective organocatalytic β-benzylation of enals.
abstract: We report herein the efficiency of quaternary ammonium salts as co-catalysts in organocatalytic Michael reactions involving iminium activation of α,β-unsaturated aldehydes. The enantioselective formal benzylation of these substrates has been optimized and used to rationalize the role of the ammonium salts in these processes.
authors.affiliation: Department of Organic Chemistry, Universidad Autónoma de Madrid, Cantoblanco 28049-Madrid, Spain.
authors.forename: Sara
authors.initials: S
authors.lastname: Duce
authors.forename: Alvaro
authors.initials: A
authors.lastname: Mateo
authors.forename: Inés
authors.initials: I
authors.lastname: Alonso
authors.forename: José Luis
authors.initials: JL
authors.lastname: García Ruano
authors.forename: M Belén
authors.initials: MB
authors.lastname: Cid