title: Pd- and Cu-catalyzed approaches in the syntheses of new cholane aminoanthraquinone pincer-like ligands.
abstract: Cu- and Pd-catalyzed arylation of aminocholanes has been described for the first time. While this Cu-catalyzed protocol provides high yields in reactions of aminocholanes with iodoarenes, Pd catalysis was found to be preferable for the reactions of aminocholanes with dichloroanthraquinones. UV-vis titration of bis(cholanylamino)anthraquinones with a series of cations demonstrated their high binding affinity to Cu2+, Al3+, and Cr3+.
authors.affiliation: Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia.
authors.forename: Nikolay V
authors.initials: NV
authors.lastname: Lukashev
authors.affiliation: Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia.
authors.forename: Gennadii A
authors.initials: GA
authors.lastname: Grabovyi
authors.affiliation: Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia.
authors.forename: Dmitry A
authors.initials: DA
authors.lastname: Erzunov
authors.affiliation: Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia.
authors.forename: Alexey V
authors.initials: AV
authors.lastname: Kazantsev
authors.affiliation: Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia.
authors.forename: Gennadij V
authors.initials: GV
authors.lastname: Latyshev
authors.affiliation: Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia.
authors.forename: Alexei D
authors.initials: AD
authors.lastname: Averin
authors.affiliation: Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia.
authors.forename: Irina P
authors.initials: IP
authors.lastname: Beletskaya
keywords: Cu-catalysis; Pd-catalysis; amination; aminocholanes; bile acids; cation complexation; diaminoanthraquinone