title: Planar chiral phosphoric acids with biphenylene-tethered paracyclophane scaffolds: synthesis, characterization, and catalytic screening.
abstract: Phosphoric acids with planar chiral paracyclophane scaffolds have been prepared in optically pure form starting from 1,8-dibromobiphenylene, by means of a chiral phosphorodiamidate as the phosphorylating agent. Structural characterization and configurational assignment have been performed by X-ray diffraction studies. The acids promote the organocatalytic enantioselective H-transfer reduction of α-arylquinolines with up to 90% enantiomeric excess.
authors.affiliation: Institut de Chimie des Substances Naturelles, CNRS UPR 2301 , 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France.
authors.forename: Kévin
authors.initials: K
authors.lastname: Isaac
authors.forename: Jérémy
authors.initials: J
authors.lastname: Stemper
authors.forename: Vincent
authors.initials: V
authors.lastname: Servajean
authors.forename: Pascal
authors.initials: P
authors.lastname: Retailleau
authors.forename: Julien
authors.initials: J
authors.lastname: Pastor
authors.forename: Gilles
authors.initials: G
authors.lastname: Frison
authors.forename: Karl
authors.initials: K
authors.lastname: Kaupmees
authors.forename: Ivo
authors.initials: I
authors.lastname: Leito
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Betzer
authors.forename: Angela
authors.initials: A
authors.lastname: Marinetti