Author

Keita Shichijo

Observed names: Keita SHICHIJO, 七條, 慶太

Institution: National Institute of Technology, Niihama College

Observed institutions: National Institute of Technology, Niihama College, Kyushu University, The Institute of Scientific and Industrial Research, The University of Osaka, The University of Osaka

ORCID: 0009-0006-9919-4627

Observed ORCID: 0009-0006-9919-4627

OpenAlex ID: A5058897244

Visible light-driven photocatalytic duet reaction catalyzed by the B12-rhodium-titanium oxide hybrid catalyst

2019 · Keita Shichijo, Mamoru Fujitsuka, et al. · Journal of Organometallic Chemistry · 18

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Development of Visible Light-Driven Hybrid Catalysts Composed of Earth Abundant Metal Ion Modified TiO2 and B12 Complex

2022 · Keita Shichijo, Midori Watanabe, et al. · Bulletin of the Chemical Society of Japan · 13

Synthesis of a B 12 –BODIPY dyad for B 12 -inspired photochemical transformations of a trichloromethylated organic compound

2020 · Yuki Anai, Keita Shichijo, et al. · Chemical Communications · 13

Catalytic Dehalogenation of Aryl Halides via Excited State Electron Transfer from the Co(I) State of B12 Complex

2020 · Hisashi Shimakoshi, Keita Shichijo, et al. · Chemistry Letters · 8

4-Amino-TEMPO-Immobilized Polymer Monolith: Preparations, and Recycling Performance of Catalyst for Alcohol Oxidation

2022 · Tomoki Imoto, Hikaru Matsumoto, et al. · Polymers · 6

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Green Molecular Transformation in Dual Catalysis: Photoredox Activation of Vitamin B12 Using Heterogeneous Photocatalyst

2024 · Keita Shichijo, Hisashi Shimakoshi · ChemPlusChem · 4

Effect of Macrocycles on the Photochemical and Electrochemical Properties of Cobalt-Dehydrocorrin Complex: Formation and Investigation of Co(I) Species

2023 · Keita Shichijo, Yohei Kametani, et al. · Inorganic Chemistry · 4

Visible‐Light‐Driven Cycloaddition of CO2 with Epoxides Catalyzed by Recyclable Mg2⁺/TiO2 Photocatalyst Operating at Room Temperature

2025 · Md. Saddam Hossain, Mayu Yuasa, et al. · Chemistry - A European Journal · 3

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B12‐Catalyzed Carbonylation of Carbon Tetrahalides: Using a Broad Range of Visible Light to Access Diverse Carbonyl Compounds

2024 · Keita Shichijo, Miho Tanaka, et al. · Chemistry - A European Journal · 3

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Visible light-driven borylation of aryl halides by a B12 derivative based on a dual photoredox strategy

2023 · Kaito Sasaki, Keita Shichijo, et al. · Journal of Porphyrins and Phthalocyanines · 3

Visible light-driven photocatalytic benzoyl azides formation from benzotrichlorides using rhodium ion modified TiO2

2023 · Keita Shichijo, Hisashi Shimakoshi · Journal of Photochemistry and Photobiology · 2

Electrochemical dechlorination of PCE catalyzed by B12 in homogeneous and heterogeneous systems

2025 · Kaito Sasaki, Keita Shichijo, et al. · Journal of Porphyrins and Phthalocyanines · 1

Effect of Catalyst Support in B12-Based Heterogeneous Catalysts for Catalytic Alkane Oxidations

2022 · Jiamin Cheng, Hikaru Matsumoto, et al. · Bulletin of the Chemical Society of Japan · 1

Cover Feature: Direct, Additive‐Free N ‐Formamide Synthesis From Secondary Amines and Oxygen With Visible‐Light‐Responsive TiO 2 Catalysts (ChemistryEurope 10/2026)

2026 · Mayu Yuasa, Keita Shichijo, et al. · ChemistryEurope

Direct, Additive‐Free N ‐Formamide Synthesis From Secondary Amines and Oxygen With Visible‐Light‐Responsive TiO 2 Catalysts

2026 · Mayu Yuasa, Keita Shichijo, et al. · ChemistryEurope

Green solvent as electron source and reactant: Dual catalysis by cobalt didehydrocorrin complex and WO3 under visible-light irradiation

2026 · Keita Shichijo, Taishi Sasakura, et al. · Coordination chemistry research.

Front Cover: B12‐Catalyzed Carbonylation of Carbon Tetrahalides: Using a Broad Range of Visible Light to Access Diverse Carbonyl Compounds (Chem. Eur. J. 2/2025)

2025 · Keita Shichijo, Miho Tanaka, et al. · Chemistry - A European Journal

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Development of Hybrid Catalyst Composed of Metal Complex and Semiconductor Photocatalyst for CO2 Reduction

2024 · Keita SHICHIJO, Hisashi SHIMAKOSHI · Hosokawa Powder Technology Foundation ANNUAL REPORT

Synthesis and Electrochemical Investigation of π Expanded Vitamin B12 Derivative, Pyrocobester

2022 · Keita Shichijo, Yoshio Hisaeda, et al. · ECS Meeting Abstracts

(Digital Presentation) Synthesis of Ureas and Carbamates from Carbon Tetrahalides By B12-TiO2 Catalyst Modified with Magnesium Ion

2022 · Miho Tanaka, Keita Shichijo, et al. · ECS Meeting Abstracts

Development of Visible Light Sensitive Photocatalyst Composed of Vitamin B12 and Metal Ions Modified TiO2

2021 · Keita Shichijo, Yoshio Hisaeda, et al. · ECS Meeting Abstracts

Visible Light-Driven Green Molecular Transformations Mediated by Vitamin B 12 -Titania Hybrid Catalyst

2021 · Keita Shichijo · The Chemical Society of Japan

Visible Light-Driven Catalytic Reaction Catalyzed By the B12-Rhodium-Titanium Oxide Hybrid Catalyst

2020 · Hisashi Shimakoshi, Keita Shichijo, et al. · ECS Meeting Abstracts

Works count: 25

Citation count: 79

H-index: 5

I10-index: 3