title: Organocatalytic, highly enantioselective vinylogous Mukaiyama-Michael reaction of acyclic dienol silyl ethers.
abstract: Now also acyclic: The first catalytic, enantioselective, vinylogous Michael reaction of linear, acyclic dienol silyl ethers was achieved. The reaction, based upon the principle of iminium ion catalysis, delivered 1,7-dioxo compounds in one step with good yields, complete regio-, and excellent enantioselectivity. γ-Substituted dienol silyl ethers furnished products with two new stereogenic centers with good diastereoselectivity. Ms = mesityl, PNBA = para-nitrobenzoic acid.
authors.affiliation: Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany.
authors.forename: Vaishali
authors.initials: V
authors.lastname: Gupta
authors.forename: Sai
authors.initials: S
authors.lastname: Sudhir V
authors.forename: Tanmay
authors.initials: T
authors.lastname: Mandal
authors.forename: Christoph
authors.initials: C
authors.lastname: Schneider