title: An enantioselective chiral Brønsted acid catalyzed imino-azaenamine reaction.
abstract: The enantioselective Brønsted acid catalyzed addition of methyleneaminopyrrolidine to N-Boc imines has been achieved in the presence of chiral phosphoric acids derived from 3,3'-di(phenanthryl)-H8-BINOL. The corresponding aminohydrazones have been isolated in good yields with enantiomeric excesses up to 90%. [reaction: see text]
authors.affiliation: Degussa Endowed Professorship, Institute of Chemistry and Chemical Biology, Johann-Wolfgang Goethe University Frankfurt am Main, Max-von-Laue Strasse 7, D-60438 Frankfurt, Germany. m.rueping@chemie.uni-frankfurt.de
authors.forename: Magnus
authors.initials: M
authors.lastname: Rueping
authors.forename: Erli
authors.initials: E
authors.lastname: Sugiono
authors.forename: Thomas
authors.initials: T
authors.lastname: Theissmann
authors.forename: Alexander
authors.initials: A
authors.lastname: Kuenkel
authors.forename: Angela
authors.initials: A
authors.lastname: Köckritz
authors.forename: Anahit
authors.initials: A
authors.lastname: Pews-Davtyan
authors.forename: Navid
authors.initials: N
authors.lastname: Nemati
authors.forename: Matthias
authors.initials: M
authors.lastname: Beller