title: Palladium(II)/Brønsted Acid-Catalyzed Enantioselective Oxidative Carbocyclization-Borylation of Enallenes.
abstract: An enantioselective oxidative carbocyclization-borylation of enallenes that is catalyzed by palladium(II) and a Brønsted acid was developed. Biphenol-type chiral phosphoric acids were superior co-catalysts for inducing the enantioselective cyclization. A number of chiral borylated carbocycles were synthesized in high enantiomeric excess.
authors: Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm SE-10691 (Sweden).
authors: Tuo
authors: T
authors: Jiang
authors: Teresa
authors: T
authors: Bartholomeyzik
authors: Javier
authors: J
authors: Mazuela
authors: Jochen
authors: J
authors: Willersinn
authors: Jan-E
authors: JE
authors: Bäckvall
keywords: carbocyclization; chiral anion; chiral phosphoric acid; oxidation; palladium