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K

Kei Ohkubo

national institutes for quantum science and technology

84H-index
695Paper Count
2.5WCitation Count
Published Papers 315
Publication Date
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Structure-Guided Design of Planarized Catechin Derivatives: Enhancing Antioxidant and Multifaceted Biological Activities for Therapeutic Applications
errAntioxidants
IF6.6
err2026-08-02
err0
errOAAI
errKiyoshi Fukuhara; Ikuo Nakanishi; Hiromu Ito; Wakana Shimizu; Yoshimi Shoji; Kei Ohkubo; Masao Morita; Sakurako Okada; Akiko Ohno
errShare
errSave
Controlled Reactive Oxygen Species Generation Pathway for Selective Methane Oxidation
errFundamental Research
IF6.3
err2026-05-21
err0
errOAAI
errHaonan Zhang; Mingbo Wu; Kei Ohkubo; Wenting Wu
errShare
errSave
Correction: Aqueous dispersion of carbon nanotubes by chlorine dioxide oxidation
errNanoscale
IF5.1
err2026-05-08
err0
errOAAI
errYuki Itabashi; Ai Sunami; Kaoru Maeno; Hiroshi Ueno; Takashi Itoh; Hiroshi Fukumura; Kei Ohkubo
errShare
errSave
Iron ion enables photocatalytic hydrogen evolution from methanol
errCommunications Chemistry
IF6.2
err2026-04-17
err0
errOAAI
errMasaya Sakurai; Yudai Kawasaki; Yuki Itabashi; Kei Ohkubo; Takahiro Matsumoto
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errSave
Mechanistic insights into CO2-driven hydration of propargylic alcohols catalyzed by oxometallate ionic liquids
errrsc adv.
IF0
err2026-04-17
err0
errOAAI
errNeveen I. Atallah; Mohamed E. El-Khouly; Ahmed Abdelmoneim; Kei Ohkubo; Morad M. El-Hendawy
errShare
errSave
3-Azafluorenone Derivatives with Small HOMO–LUMO Gaps, Allowing Visible-Light Absorption
errChemistry – An Asian Journal
IF3.3
err2025-11-05
err0
PREAI
errToshimichi Kobayashi; Yuki Itabashi; Kento Iwai; Tsuyoshi Inoue; Kei Ohkubo; Haruyasu Asahara
errShare
errSave
Enhanced cytotoxicity against cancer cells by acetylation of a planar catechin analog
errFree Radical Research
IF2.9
err2025-07-04
err0
PREAI
errHiromu Ito; Yoshimi Shoji; Yuki Itabashi; Ken-ichiro Matsumoto; Kei Ohkubo; Kiyoshi Fukuhara; Ikuo Nakanishi
errShare
errSave
Highly Efficient Upconverted Fluorescence from Coulombically Assembled Ion Pair
errADVANCED OPTICAL MATERIALS
IF7.2
err2025-05-19
err0
errOAAI
errBaek, JH; Song, D; Park, G; Avula, S; Park, S; Ohkubo, K; You, Y
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errSave
Photocatalytic and Chemoselective H/D Exchange at α-Thio C(sp3)-H Bonds
errJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
IF15.6
err2025-04-24
err0
PREAI
errOgasahara, Riku; Mae, Miyu; Itabashi, Yuki; Ohkubo, Kei; Matsuura, Keisuke; Shimizu, Hyoga; Ban, Kazuho; Togami, Masaki; Udagawa, Taro; Fujioka, Hiroyoshi; Kamiya, Mako; Akai, Shuji; Sawama, Yoshinari
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errSave
Tetrabutylammonium Chlorite as an Efficient Oxidant for Controlled Oxidation of Sulfides to Sulfoxides
errCHEMISTRY-A EUROPEAN JOURNAL
IF3.7
err2025-02-18
err0
PREAI
errItabashi, Yuki; Ogata, Shuto; Shimada, Yusuke; Kondo, Minato; Nishiwaki, Nagatoshi; Inoue, Tsuyoshi; Asahara, Haruyasu; Ohkubo, Kei
errShare
errSave
Antioxidant Activity of Planar Catechin Conjugated with Trolox
errANTIOXIDANTS
IF6.6
err2024-09-25
err0
errOAAI
errShimizu, Wakana; Shoji, Yoshimi; Ohkubo, Kei; Ito, Hiromu; Nakanishi, Ikuo; Fukuhara, Kiyoshi
errShare
errSave
Scandium Ion-Promoted Electron-Transfer Disproportionation of 2-Phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-Oxide (PTIO•) in Acetonitrile and Its Regeneration Induced by Water
errINTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
IF4.9
err2024-04-17
err0
errOAAI
errShoji, Yoshimi; Terashima, Yuri; Ohkubo, Kei; Ito, Hiromu; Maruyama, Kouichi; Fukuzumi, Shunichi; Nakanishi, Ikuo
errShare
errSave
9-(4-Halo-2,6-xylyl)-10-methylacridinium Ion as an Effective Photoredox Catalyst for Oxygenation and Trifluoromethylation of Toluene Derivatives
errACS CATALYSIS
IF13.1
err2024-02-06
err7
PREAI
errOhkubo, Kei; Matsumoto, Soichiro; Asahara, Haruyasu; Fukuzumi, Shunichi
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errSave
Supramolecular nanosheet formation-induced photosensitisation mechanism change of Rose Bengal dye in aqueous media
errCHEMICAL COMMUNICATIONS
IF4.2
err2024-01-01
err1
PREAI
errBunno, Asuka; Shigemitsu, Hajime; Yoshikawa, Aya; Osakada, Yasuko; Fujitsuka, Mamoru; Ishiwari, Fumitaka; Saeki, Akinori; Ohkubo, Kei; Mori, Tadashi; Kida, Toshiyuki
errShare
errSave
Water-Induced Regeneration of a 2,2-Diphenyl-1-picrylhydrazyl Radical after Its Scandium Ion-Promoted Electron-Transfer Disproportionation in an Aprotic Medium
errMOLECULES
IF4.6
err2023-06-26
err2
errOAAI
errNakanishi, Ikuo; Shoji, Yoshimi; Ohkubo, Kei; Ito, Hiromu; Fukuzumi, Shunichi
errShare
errSave
One-step antibacterial modification of polypropylene non-woven fabrics via oxidation using photo-activated chlorine dioxide radicals
errJOURNAL OF MATERIALS CHEMISTRY B
IF5.7
err2023-01-01
err7
errOAAI
errYamamoto, Keita; Asahara, Haruyasu; Harada, Kazuo; Itabashi, Yuki; Ohkubo, Kei; Inoue, Tsuyoshi
errShare
errSave
Chlorine-radical-mediated C-H oxygenation reaction under light irradiation
errCHEMICAL COMMUNICATIONS
IF4.2
err2023-01-01
err18
errOAAI
errItabashi, Yuki; Asahara, Haruyasu; Ohkubo, Kei
errShare
errSave
pH Effect on the Kinetic Isotope Effect in the Hydrogen Transfer from Trolox to Water-Solubilized 2,2-Diphenyl-1-picrylhydrazyl Radical in Phosphate Buffer Solutions
errFREE RADICAL BIOLOGY AND MEDICINE
IF8.2
err2022-11-01
err0
PREAI
errNakanishi, Ikuo; Shoji, Yoshimi; Ohkubo, Kei
errShare
errSave
Fluorescein-Based Type I Supramolecular Photosensitizer via Induction of Charge Separation by Self-Assembly
errJACS AU
IF8.7
err2022-05-24
err41
errOAAI
errShigemitsu, Hajime; Ohkubo, Kei; Sato, Kazuhide; Bunno, Asuka; Mori, Tadashi; Osakada, Yasuko; Fujitsuka, Mamoru; Kida, Toshiyuki
errShare
errSave
9-Cyano-10-methoxycarbonylanthracene as a Visible Organic Photoredox Catalyst in the Two-Molecule Photoredox System
errJOURNAL OF ORGANIC CHEMISTRY
IF3.6
err2022-05-23
err18
PREAI
errTajimi, Yuka; Nachi, Yasuhiro; Inada, Ryoko; Hashimoto, Ryoga; Yamawaki, Mugen; Ohkubo, Kei; Morita, Toshio; Yoshimi, Yasuharu
errShare
errSave

Research Directions

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Co-authors
Cooperation Journals
S
Stephen J. Lippard
H-index: 144 · Papers: 1.5K
J
Jonathan L. Sessler
H-index: 135 · Papers: 1.5K
S
Shunichi Fukuzumi
H-index: 134 · Papers: 1.6K
K
Katsuhiko Ariga
H-index: 130 · Papers: 1.3K
D
Dirk M. Guldi
H-index: 113 · Papers: 1.4K
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