H
Hiroshi Tadaoka
Researcher at Osaka University
Publications - 7
Citations - 245
Hiroshi Tadaoka is an academic researcher from Osaka University. The author has contributed to research in topics: Catalysis & Asymmetric hydrogenation. The author has an hindex of 5, co-authored 7 publications receiving 236 citations. Previous affiliations of Hiroshi Tadaoka include Chimie ParisTech & Centre national de la recherche scientifique.
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Journal ArticleDOI
Unprecedented halide dependence on catalytic asymmetric hydrogenation of 2-aryl- and 2-alkyl-substituted quinolinium salts by using Ir complexes with difluorphos and halide ligands.
Hiroshi Tadaoka,Damien Cartigny,Takuto Nagano,Tushar Gosavi,Tahar Ayad,Jean Pierre Genêt,Takashi Ohshima,Virginie Ratovelomanana-Vidal,Kazushi Mashima +8 more
TL;DR: A highly enantioselective hydrogenation of the HX salts (X= Cl, Br, and I) of various 2aryl-substituted quinolines by using cationic dinuclear iridium complexes with [(4,4’-bi-2,2-difluoro-1,3-benzodioxole), which demonstrates an unexpected halide effect.
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Oxidative addition of RCO2H and HX to chiral diphosphine complexes of iridium(I) : Convenient synthesis of mononuclear halo-carboxylate iridium(III) complexes and cationic dinuclear triply halogen-bridged iridium(III) complexes and their catalytic performance in asymmetric hydrogenation of cyclic imines and 2-phenylquinoline
T. Yamagata,Hiroshi Tadaoka,Mitsuhiro Nagata,Tsukasa Hirao,Yasutaka Kataoka,Virginie Ratovelomanana-Vidal,Jean Pierre Genet, ,‡ and,Kazushi Mashima +7 more
TL;DR: In this paper, a one-pot reaction of [Ir(μ-X] was used to produce the iridium(III) complexes of general formula IrX(H)(O2CR)[(S)-binap] for the first time.
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Highly Enantio- and s-trans C=C bond selective catalytic hydrogenation of cyclic enones: alternative synthesis of (-)-menthol.
TL;DR: A new synthetic method for optically pure (-)-menthol via three atom-economical hydrogenations is demonstrated and it is found that the complete s-trans and s-cis C=C bond selective reactions were also realized by the proper choice of both the chiral ligands and halides.
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Novel Ir-SYNPHOS® and Ir-DIFLUORPHOS® catalysts for asymmetric hydrogenation of quinolines
Coralie Deport,Marie Buchotte,Keren Abecassis,Hiroshi Tadaoka,Tahar Ayad,Takashi Ohshima,Jean Pierre Genêt,Kazushi Mashima,Virginie Ratovelomanana-Vidal +8 more
TL;DR: Novel Ir-SYNPHOS and Ir-DIFLUORPHOS catalysts were synthesized and used for the synthesis of tetrahydroquinolines via asymmetric hydrogenation of the corresponding quinoline -derivatives.
Journal ArticleDOI
Ni-catalyzed arylation of bromomagnesium diarylamides with aryl N,N-dimethylsulfamates
Hiroshi Tadaoka,Tetsu Yamakawa +1 more
TL;DR: In this paper, the combination of Ni(cod) 2 and N,N -1,3-bis(2,6-diisopropylphenyl)-4-imidazoline-2-ylidene as a catalyst successfully gave unsymmetrical N, N -diaryl- N′,N′ -diphenyl-1,1′-biphensyl-4,4-4′-diamines through the arylation of bromomagnesium diarylamide with 1-(4-dip