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J-GLOBAL ID：200901062709213044   Update date: Sep. 19, 2024

Hasegawa Eietsu

ハセガワ エイエツ | Hasegawa Eietsu
Affiliation and department：
Niigata University Faculty of Science, Department of Science

About Niigata University Faculty of Science, Department of Science


Homepage URL  (1)： http://chem.sc.niigata-u.ac.jp/~ehase/
Research field  (3)： Synthetic organic chemistry ,  Bioorganic chemistry ,  Structural/physical organic chemistry
Research keywords  (5)： Green chemistry ,  Radicals ,  Radical ions ,  Organic photochemistry ,  Electron transfer
Research theme for competitive and other funds  (12)：
  • 2019 - 2022 電子移動とプロトン・水素原子移動ではたらく新規な有機光試薬と有機光触媒の開発
  • 2016 - 2019 Triplet Harvesting by Control of the Transition State
  • 2016 - 2019 Development of New Super-organic-donor Reagents by Photo-activation and Their Application to Photo-catalysts
  • 2003 - 2005 Control of the Reactivity of Ketyl Radicals through Acid-Base Interaction with Proton and Metal Ions
  • 2002 - 2003 電子移動反応のための多機能含窒素複素環化合物の開発
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Papers (92)：
  • Eietsu Hasegawa, Ryo Miyajima, Manon Okamura, Kazuki Oomori, Hajime Iwamoto, Kan Wakamatsu. Desulfonylative Radical Truce-Smiles Rearrangement Utilizing the Benzimidazoline and Benzimidazolium Redox Couple. Synlett. 2023. 35. 03. 352-356
  • Ryo Miyajima, Yuuki Ooe, Tomoaki Miura, Tadaaki Ikoma, Hajime Iwamoto, Shin-ya Takizawa, Eietsu Hasegawa. Triarylamine-Substituted Benzimidazoliums as Electron Donor-Acceptor Dyad-Type Photocatalysts for Reductive Organic Transformations. Journal of the American Chemical Society. 2023. 145. 18. 10236-10248
  • Tsukasa Tanaka, Takehiro Kiuchi, Yuuki Ooe, Hajime Iwamoto, Shin-ya Takizawa, Shigeru Murata, Eietsu Hasegawa. A Photocatalytic System Composed of Benzimidazolium Aryloxide and Tetramethylpiperidine 1-Oxyl to Promote Desulfonylative α-Oxyamination Reactions of α-Sulfonylketones. ACS Omega. 2022. 7. 5. 4655-4666
  • Eietsu Hasegawa, Shyota Nakamura, Kazuki Oomori, Tsukasa Tanaka, Hajime Iwamoto, Kan Wakamatsu. Competitive Desulfonylative Reduction and Oxidation of α-Sulfonylketones Promoted by Photoinduced Electron Transfer with 2-Hydroxyaryl-1,3-dimethylbenzimidazolines under Air. The Journal of Organic Chemistry. 2021
  • Hajime Iwamoto, Yuki Ishizu, Eietsu Hasegawa, Ryo Sekiya, Takeharu Haino. Translational isomers of N-sulfonylated [3]catenane: synthesis and isomerization. Chemical Communications. 2021
ｍore...
MISC (1)：
  • Eietsu Hasegawa, Hiroyuki Tsuchida, Mutsuko Tamura. Cyclization and ring-expansion reactions involving reductive formation and oxidative ring-opening of cyclopropanol derivatives (vol 34, pg 1688, 2005). CHEMISTRY LETTERS. 2007. 36. 8. 1080-1080
Lectures and oral presentations  (23)：
  • A photo-catalytic system of benzimidazolium aryloxide catalysts and TEMPO to promote -oxyamination reaction of carbonyl compounds
    (The 14th International Symposium on Organic Reactions 2020)
  • Benzimidazolium aryloxides: These betaine molecules act as visible light promoted organic photoredox catalysts
    (The 13th International Symposium on Organic Reactions 2018)
  • Significant solvent effects on copper(II) tetrafluoroborate promoted oxidative ring-opening reactions of bicyclic cyclopropyl silyl ethers
    (The 12th International Symposium on Organic Reactions 2016)
  • Visible light promoted reductive transformation of various organic functional groups by using hydroxyaryl substituted benzimidazoline derivatives
    (The 2016 Korea-Japan Symposium on Frontier Photoscience held at the 26th IUPAC Symposium on Photochemistry 2016)
  • ベンズイミダゾリンのマルチキャラクタードナー特性に基づく有機分子変換
    (第39回有機電子移動化学討論会 2015)
ｍore...
Education (2)：
  • - 1985 Tohoku University Graduate School of Science Department of Chemistry
  • - 1980 Yamagata University Faculty of Science Department of Chemistry
Professional career (1)：
  • 理学博士 (東北大学)
Work history (8)：
  • 2017/04 - 現在 Niigata University Faculty of Science Department of Science Professor
  • 2010/04/01 - 現在 Niigata University Graduate School of Science and Technology Fundamental Sciences Professor
  • 2006/06 - 2017/03 Niigata University Faculty of Science Department of Chemistry Professor
  • 1992/04 - 2006/05 Niigata University Faculty of Science Department of Chemistry Associate Professor
  • 1999/03 - 1999/03 Steacie Institute for Molecular Sciences, National Research Council Canada Visiting research associate
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Association Membership(s) (5)：
THE CHEMICAL SOCIETY OF JAPAN ,  THE SOCIETY OF SYNTHETIC ORGANIC CHEMISTRY, JAPAN ,  THE JAPANESE PHOTOCHEMISTRY ASSOCIATION ,  有機電子移動化学研究会 ,  AMERICAN CHEMICAL SOCIETY
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