査読付原著論文
Bayesian optimization assisted screening conditions for visible light-induced hydroxy-perfluoroalkylation
Koto Tagami, Masaru Kondo, Shinobu Takizawa, Nobuyuki Mase and Tomoko Yajima, Journal of Fluorine Chemistry, 2024, 276, 110294
https://doi.org/10.1016/j.jfluchem.2024.110294
10-Phenylphenothiazine-Organophotocatalyzed Bromo-Perfluoroalkylation of Unactivated Olefins
Koto Tagami, Moeko Nakayama, Tadashi Kanbara, Dominique Cahard and Tomoko Yajima, J. Org. Chem., 2024
https://doi.org/10.1021/acs.joc.4c00470
Nitroxide-Mediated Controlled Radical Copolymerization of α-Trifluoromethylstyrenes with Styrenes
Tadashi Kanbara, Yuriko Ito, Airi Yamaguchi and Tomoko Yajima, Molcules, 2024, 29, 1214
https://doi.org/10.3390/molecules29061214
Voltammetric Studies on the Reduction Potentials of Perfluoroalkyl Halides and Their Analogous Compounds
Airi YAMAGUCHI, Naoki SHIDA, Mahito ATOBE, and Tomoko YAJIMA, Electrochemistry, 2023, 91, 112016
https://doi.org/10.5796/electrochemistry.23-67111
Hydroxy- and Hydro-Perfluoroalkylation of Styrenes by Controlling the Quenching Cycle of Eosin Y
Haruko Shibata, Moeko Nakayama, Koto Tagami , Tadashi Kanbara and Tomoko Yajima, Molecules, 2023, 28, 7577
https://doi.org/10.3390/molecules28227577
Halogen-Bond-Promoted Hydroxyperfluoroalkylation of Olefins with Molecular Oxygen under Visible-Light Irradiation
Koto Tagami, Tomoko Yajima, Asian J. Org. Chem. 2023, 12, e202300273.
https://doi.org/10.1002/ajoc.202300273
Development of Electrophilic Radical Perfluoroalkylation of Electron-Deficient Olefins
Koto Tagami, Tomoko Yajima, Chem. Rec., 2023, 23, e20230037
https://doi.org/10.1002/tcr.202300037
Amine-catalyzed Synthesis of Fluorine-containing Polymers through Halogen Bonding
Tadashi Kanbara, Mizuki Arase, Miyu Tanaka, Airi Yamaguchi, Koto Tagami, Prof. Dr. Tomoko Yajima, Asian J. Chem., 2023, e202300035
https://onlinelibrary.wiley.com/doi/10.1002/asia.202300035
Metal-free visible-light-induced hydroxyperfluoroalkylation of conjugated olefins using enamine catalyst
Koto Tagami, Yu Ofuji, Tadashi Kanbara and Tomoko Yajima, RSC Adv. 2022,12, 32790-32795
https://doi.org/10.1039/D2RA06679C
Eosin Y‑Catalyzed Visible-Light-Induced Hydroperfluoroalkylation of Electron-Deficient Alkenes: Satsuki Shigenaga, Haruko Shibata, Koto Tagami, Tadashi Kanbara, and Tomoko Yajima, J. Org. Chem. 2022, 87, 14923-14929. https://doi.org/10.1021/acs.joc.2c01827
Radical cyclization reaction of iodine containing fluoroolefines: Yu Ofuji, Tadashi Kanbara, Tomoko Yajima, J. Fluorine Chem. 247 (2021) 109805.
https://doi.org/10.1016/j.jfluchem.2021.109805
Synthesis of perfluoroalkylene oligo(ethylene glycol) alternative polymer via photoinduced polyaddition: Manami Shinmen, Kana Sasahara, Saki Nakamura, Tadashi Kanbara, Tomoko Yajima, J. Fluorine Chem. 229 (2020) 109417.https://doi.org/10.1016/j.jfluchem.2019.109417
Visible Light-Induced Radical Iodoperfluoroalkylation of Unactivated Olefins Cooperatively Catalyzed by Enamines and Amines; Tomoko Yajima, Mao Murase, Yu Ofuji, Eur. J. Org. Chem. 2020, 3808–3811.https://doi.org/10.1002/ejoc.201901896
Metal-Free Visible Light Hydroperfluoroalkylation of Unactivated Alkenes Using Perfluoroalkyl Bromides; Tomoko Yajima, Satsuki Shigenaga, Org. Lett. 2019, 21, 138-141. https://doi.org/10.1021/acs.orglett.8b03596
Fluorine-Containing Dibenzoanthracene and Benzoperylene-Type Polycyclic Aromatic Hydrocarbons: Synthesis, Structure, and Basic Chemical Properties; Otohiro Gotsu, Tomomi Shiota, Hiroki Fukumoto*, Tomoko Kawasaki-Takasuka, Takashi Yamazaki, Tomoko Yajima, Tomohiro Agou*, Toshio Kubota*; Molecules 2018, 23, 3337 https://doi.org/10.3390/molecules23123337
Metal-free visible-light synthesis of quaternary α-perfluoroalkyl aldehydes via an enamine intermediate; Haruna Matsui, Mao Murase Tomoko Yajima; Org. Biomol. Chem., 2018, 16, 7120-7123.
https://doi.org/10.1039/C8OB02058B
Synthesis of Chiral Fluorinated Amino Acids by Eosin Y Catalyzed Perfluoroalkyl Radical Addition to Dehydroamino Acids Tomoko Yajima*, Mako Ikegami Fluorine Notes, 2018, 121, 1-10 http://dx.doi.org/10.17677/fn20714807.2018.06.01
Unusual Molecular and Supramolecular Structures of Chiral Low Molecular Weight Organogelator with Long Perfluoroalkyl Chains; Toshiyuki Sasaki, Akiko Egami, Tomoko Yajima, Hidehiro Uekusa, and Hisako Sato; Cryst. Growth Des. 2018, 18 (7), 4200-4205 https://doi.org/10.1021/acs.cgd.8b00779
Stereochemical Effects on Dynamics in Two-component Systems of Gelators with Perfluoroalkyl and Alkyl Chains as Revealed by Vibrational Circular Dichroism Quick View Other Sources; Hisako Sato, Tomoko Yajima, Akihiko Yamagishi; Phys. Chem. Chem. Phys. 2018, 20, 3210-3215
https://doi.org/10.1039/C7CP06264H
Two-dimensional Arrays of Helical Rods as a Precursor of Gel Fibrils; Hisako Sato, Akihiko Yamagishi, Kenji Tamura, Tomoko Yajima; Chem. Lett. 2017, 46, 1679-1682 https://doi.org/10.1246/cl.170774
Chiral phosphorescent probes for amino acids: hybrids of iridium(III) complexes with synthetic saponite; *Hisako Sato, Kenji Tamura, Tomoko Yajima, Fumi Sato and Akihiko Yamagishi; New J. Chem., 2017, 41, 2780-2785. https://doi.org/10.1039/C6NJ03777A
Metal-Free Visible-Light Radical Iodoperfluoroalkylation of Terminal Alkenes and Alkynes; Tomoko Yajima*, Mako Ikegami; Eur. J. Org. Chem., 2017, 15, 2126-2129. https://doi.org/10.1002/ejoc.201700077
Synthesis of perfluoroalkylated pentacenes and evaluation of their fundamental physical properties; Shigeyuki Yamada, Keita Kinoshita, Shota Iwama, Takashi Yamazaki,* Toshio Kubota, Tomoko Yajima, Kyoko Yamamoto, Shinya Tahara; Org. Biomol. Chem., 2017, 15, 2522-2535.
https://doi.org/10.1039/C7OB00043J
Photoinduced Double Perfluoroalkylation of Methylacenes; Emiko Nogami, Yuri Washimi, Takashi Yamazaki, Toshio Kubota, Tomoko Yajima*; Tetrahedron Lett., 2016, 57, 2624-2627.
https://doi.org/10.1016/j.tetlet.2016.05.001
Helical Inversion of Gel Fibrils by Elongation of Perfluoroalkyl Chains as Studied by Vibrational Circular Dichroism; Hisako Sato*, Tomoko Yajima, Akihiko Yamagishi; Chirality, 2016, 316-319.
https://doi.org/10.1002/chir.22592
Chiroptical Studies on Supramolecular Chirality of Molecular Aggregates; Hisako Sato*, Tomoko Yajima, Akihiko Yamagishi; Chirality, 2015, 27(10), 659-666. https://doi.org/10.1002/chir.22482
Perfluorinated gelators for solidifying fluorous solvents: effects of chain length and molecular chirality; Tomoko Yajima*, Erika Tabuchi, Emiko Nogami, Akihiko Yamagishi, Hisako Sato*; RSC Adv. 2015, 5, 80542-80547.
https://doi.org/10.1039/C5RA12656H
Stereochemical Investigation of the Products of the Photoinduced Perfluoroalkylation-Dimerization of Anthracene; Emiko Nogami, Takashi Yamazaki, Toshio Kubota, Tomoko Yajima*; J. Org. Chem. 2015, 80, 9208-9213. https://doi.org/10.1021/acs.joc.5b01655
Facile synthetic protocols for perfluoroalkyl-substituteddiazapentaphenes; Shigeyuki Yamada, Shota Iwama, Keita Kinoshita, Takashi Yamazaki*, Toshio Kubota, Tomoko Yajima; Tetrahedron; 2014, 70, 6749-6756. https://doi.org/10.1016/j.tet.2014.07.069
An Intermediate State in Gelation as Revealed by Vibrational Circular Dichroism Spectroscopy; Hisako Sato*, Tomoko Yajima, Akihiko Yamagishi; RSC Adv.; 2014, 4, 25867-25870.
https://doi.org/10.1039/C4RA02526A
Terminal Effects on Gelation by Low Molecular Weight Chiral Gelators; Hisako Sato*, Emiko Nogami, Tomoko Yajima, Akihiko Yamagishi; RSC Adv.; 2014, 4, 1659-1665. https://doi.org/10.1039/C3RA44070B
Diastereoselective radical addition to γ-alkyl-α-methylene-γ-butyrolactams and the synthesis of a chiral pyroglutamic acid derivative; Tomoko Yajima*, Eriko Yoshida, Masako Hamano; Beilstein J. Org. Chem.; 2013, 9, 1432-1436.
https://doi.org/10.3762/bjoc.9.161
Development of novel synthetic routes to bis(perfluoroalkyl)-substituted anthracene derivatives; Shigeyuki Yamada, Keita Kinoshita, Shota Iwama, Takashi Yamazaki*, Toshio Kubota and Tomoko Yajima; RSC Adv., 2013, 3, 6803-6806. https://doi.org/10.1039/C3RA40974K
Photoinduced Radical Hydroperfluoroalkylation and the Synthesis of Fluorinated Amino Acids and Peptides; Tomoko Yajima*, Kanako Yamaguchi, Rie Hirokane, Emiko Nogami; J. Fluor. Chem., 2013, 150, 1-7. https://doi.org/10.1016/j.jfluchem.2013.02.019
Photoinduced Addition and Addition–Elimination Reactions of Perfluoroalkyl Iodides to Electron-deficient Olefins; Tomoko Yajima*, Ishrat Jahan, Takayuki Tonoi, Manami Shinmen, Aya Nishikawa, Kanako Yamaguchi, Izumi Sekine, Hajime Nagano; Tetrahedron, 2012, 68, 6856-6861. https://doi.org/10.1016/j.tet.2012.06.028
Promotion effects of optical antipodes on the formation of helical fibrils: chiral perfluorinated gelators; Kazuhiro Kohno, Kazuya Morimoto, Naoko Manabe, Tomoko Yajima, Akihiko Yamagishi*, Hisako Sato*; Chem. Comm., 2012, 48, 3860-3862.
https://doi.org/10.1039/C2CC18164A
Molecular Origin for Helical Winding of Fibrils Formed by Perfluorinated Gelators; Hisako Sato*, Tomoko Yajima, Akihiko Yamagishi; Chem. Comm., 2011, 47, 3736-3738. https://doi.org/10.1039/C0CC05802E
Direct Racemic Mixture Synthesis of Fluorinated Amino Acids by Perfluoroalkyl Radical Addition to Dehydroamino Acids Terminated by Asymmetric Protonation; Tomoko Yajima*, Takayuki Tonoi, Hajime Nagano, Yuichi Tomita, Koichi Mikami*; Eur. J. Org. Chem., 2010, 2461-2464.
https://doi.org/10.1002/ejoc.201000017
Crystal structure of ethanolato-dibenzoylmethanato-(R,R-dibenzoylstilbene-diamine)-nitratonickel(II), Ni(C2H5OH)(C15H11O2)(C28H26N2)(NO3); Keiko Miyamoto, Tomoko Yajima, Ernst Horn*, Yutaka Fukuda; Z. Kristallogr. NCS, 2010, 225(1), 161-163. https://doi.org/10.1524/ncrs.2010.0070
Highly cis- and trans-selective alkyl radical addition to a-methylene-g-phenyl-g- butyrolactams; Tomoko Yajima*, Masako Hamano, Hajime Nagano*; Tetrahedron Lett., 2009, 50, 1301-1302.
Fluorous substituent-based enantiomer and diastereomer separation: orthogonal use of HPLC columns for the synthesis of nonproteinogenic polyfluoro amino acids and peptides; Takayuki Tonoi, Aya Nishikawa, Tomoko Yajima*, Hajime Nagano, Koichi Mikami*; Eur. J. Org. Chem., 2008, 1331-1335.
Photoinduced diastereoselective addition of perfluoroalkyl iodides to acrylic acid derivatives for the synthesis of fluorinated amino acids; Tomoko Yajima*, Hajime Nagano; Org. Lett., 2007, 9 (13), 2513-2515.
Crystal structure of aqua(benzoylacetonato)(R,R-dibenzylstilbene-diamine)(nitrato)nickel(II) ethanol disolvate, Ni(H2O)(C10H10O2)(C28H28N2)(NO3)・1.9C2H5OH; Keiko Miyamoto, Tomoko Yajima, Ernst Horn*, Yutaka Fukuda; Z. Kristallogr. NCS, 2007, 222(3), 243-245.
Radical-mediated hydroxyalkylation of a,b-unsaturated esters; Tomoko Yajima, Chiaki Saito, Hajime Nagano*; Tetrahedron, 2005, 61, 10203-10215.
Substituent effect on the diastereoselectivity in the chelation-controlled radical reactions of g-(p-substituted-benzyloxy)-a-methylene esters with alkyl iodides; Tomoko Yajima, Kyoko Okada, Hajime Nagano*; Tetrahedron, 2004, 60, 5683-5693.
Radical-mediated hydroxytrifluoromethylation of a,b-unsaturated esters; Tomoko Yajima, Hajime Nagano*, Chiaki Saito; Tetrahedron Lett., 2003, 44, 7027-7029.
Stereoselectivity in the formation and radical reduction of cyclic bromoacetals, key intermediates for the synthesis of d-hydroxy- and e-hydroxy-a-methylcarboxylic acid esters; Hajime Nagano*, Ayako Mikami, Tomoko Yajima; Tetrahedron Lett., 2003, 44, 6867-6870.
Remote substituent effect favoring the formation of syn-adducts in the chelation controlled radical reactions of g-benzyloxy-a-methylenecarboxylic acid esters; Hajime Nagano*, Hisako Ohkouchi, Tomoko Yajima; Tetrahedron, 2003, 59, 3649-3663.
Origins of stereoselectivity in the chelation-controlled addition of alkyl radicals to a-methylene-g-oxycarboxylic acid esters; Hajime Nagano*, Satoko Toi, Mikako Matsuda, Tamano Hirasawa, Satomi Hirasawa, Tomoko Yajima; J. Chem. Soc., Perkin Trans.1, 2002, 2525-2538.
Stereoselective synthesis of 24-alkyl-22-hydroxysterols based on chelation-controlled radical reactions; Hajime Nagano*, Mikako Matsuda, Tomoko Yajima; J. Chem. Soc., Perkin Trans.1, 2001, 174-182.
Stereoselective transannular radical cyclization of unsaturated cyclic iodoacetals yielding medium-sized carbocycles; Hajime Nagano*, Asako Tada, Yuko Isobe, Tomoko Yajima; Synlett, 2000, 1193-1195.
Chelation-controlled 1,3-asymmetric induction in the radical addition-allylation reactions of 4-hydroxyand 4-alkoxy-2-methylenecarboxylic esters; Hajime Nagano*, Tamano Hirasawa, Tomoko Yajima; Synlett, 2000, 1073-1075.
Tandem 5-exo-dig-5-exo-trig radical cyclization leading to a 6,5-ring fused carbocycle possessing two contiguous quaternary carbons at the bridgehead and its adjacent positions; Hajime Nagano*, Yohko Ohtani, Eiko Odake, Junko Nakagawa, Yukie Mori, Tomoko Yajima; J. Chem. Res., Synop., 1999, 338-339.
Chelation-controlled 1,3-asymmetric induction in radical addition to g-hydroxy- and g-alkoxy-a-methylene carboxylic esters; Hajime Nagano*, Satoko Toi, Tomoko Yajima; Synlett, 1999, 53-54.
Tandem (domino) and two-directional asymmetric catalysis of carbonyl-ene reaction with fluoral: Fluoral-ene approach to modeling of inter-smectic layer interaction of antiferroelectric liquid crystals; Koichi Mikami*, Tomoko Yajima, Nasakul Siree, Masahiro Terada, Yoshiichi Suzuki, Yoichi Takanishi, Hideo Takezoe*; Synlett, 1999, 1895-1898.
Spontaneous enantiomeric resolution in a fluid smectic phase of a racemate; Yoichi Takanishi, Hideo Takezoe*, Yoshiichi Suzuki, Ichiro Kobayashi, Tomoko Yajima, Masahiro Terada, Koichi Mikami*; Angew. Chem. Int. Ed., 1999, 38, 2354-2356.
Asymmetric imine-ene reactions: Diastereofacial selective reactions with chiral glyoxylate-derived a-imino esters and asymmetric catalysis of enantiofacial selective reactions with prochiral a-imino esters; Koichi Mikami, Tomoko Yajima, Masami Kaneko; Amino Acids, 1998, 14, 311-318.
Direct transition from SA to antiferroelectric, ferroelectric or unknown phases of diastereomeric liquid-crystalline molecules with varying enantiomeric purities; Koichi Mikami*, Tomoko Yajima, Masahiro Terada, Yoshiichi Suzuki, Ichiro Kobayashi; J. Chem. Soc. Chem. Commun., 1997, 57-58.
Binaphthol-titanium complex-catalyzed fluoral-ene reaction with vinyl sulfides for asymmetric synthesis of diastereomeric a-trifluoromethyl-b-methyl carbinols: Diastereomer switch of antiferroelectric or ferroelectric properties of diastereomeric liquid-crystalline systems; Koichi Mikami*, Tomoko Yajima, Nasakul Siree, Masahiro Terada, Yoshiichi Suzuki, Ichiro Kobayashi; Synlett, 1996, 837-838.
Diastereotropic phenomena for the appearance of SmCA* phase in a-trifluoromethyl -b-methyl-substituted liquid crystalline molecules; Koichi Mikami*, Tomoko Yajima, Masahiro Terada, Susumu Kawauchi, Yoshiichi Suzuki, Ichiro Kobayashi; Chem. Lett., 1996, 861-862.
Asymmetric catalysis of carbonyl-ene and aldol reactions with fluoral by chiral binaphthol-derived titanium complex; Koichi Mikami*, Tomoko Yajima, Tsuyoshi Takasaki, Satoru Matsukawa, Masahiro Terada, Tadafumi Uchimaru, Masamichi Maruta; Tetrahedron, 1996, 52, 85-98.
Diastereoselective and enantioselective catalysis of the carbonyl-ene reaction with fluoral; Koichi Mikami*, Tomoko Yajima, Masahiro Terada, Etsuko Kato, Masamichi Maruta; Tetrahedron: Asymmetry, 1994, 5, 1087-1090.
Asymmteric catalysis of ene-type reaction with fluoral by chiral titanium complex: A semi-empirical and Ab-initio analysis of ene reactivity; Koichi Mikami*, Tomoko Yajima, Masahiro Terada, Tadahumi Uchimaru; Tetrahedron Lett., 1993, 34, 7591-7594.
Asymmetric imine-ene reactions with chiral glyoxylate-derived a-imino esters: an efficient route to asymmetric synthesis of a-amino acids; Koichi Mikami*, Masami Kaneko, Tomoko Yajima; Tetrahedron Lett., 1993, 34, 4841-4842.