title: Reaction of 2-polyfluoroalkylchromones with 1,3,3-trimethyl-3,4-dihydroisoquinolines and methylketimines as a direct route to zwitterionic axially chiral 6,7-dihydrobenzo[a]quinolizinium derivatives and 2,6-diaryl-4-polyfluoroalkylpyridines.
abstract: [reaction: see text] 2-Polyfluoroalkylchromones react with 1,3,3-trimethyl-3,4-dihydroisoquinolines to give zwitterionic axially chiral 6,7-dihydrobenzo[a]quinolizinium derivatives in high yields. In addition, performing this reaction with aromatic methylketimines is a simple and convenient synthesis of 2,6-diaryl-4-polyfluoroalkylpyridines.
authors.affiliation: Department of Chemistry, Ural State University, 620083 Ekaterinburg, Russia. vyacheslav.sosnovskikh@usu.ru
authors.forename: Vyacheslav Ya
authors.initials: VY
authors.lastname: Sosnovskikh
authors.forename: Boris I
authors.initials: BI
authors.lastname: Usachev
authors.forename: Aleksei Yu
authors.initials: AY
authors.lastname: Sizov
authors.forename: Ivan I
authors.initials: II
authors.lastname: Vorontsov
authors.forename: Yurii V
authors.initials: YV
authors.lastname: Shklyaev