KEIO RESEARCHERS INFORMATION SYSTEM

Career 【 Display / hide 】

Career 【 Display / hide 】

• 2023.04

  -

  2024.03

  独立行政法人日本学術振興会 特別研究員(DC2)

• 2024.04

  -

  Present

  Keio University, Faculty of Science and Technology Department of Chemistry, 助教(有期)

Academic Background 【 Display / hide 】

Academic Background 【 Display / hide 】

• 2015.04

  -

  2019.03

  Nagoya University, School of Science, Department of Chemistry

• 2019.04

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  2021.03

  Nagoya University, Graduate School of Science, 物質理学専攻(化学系)

• 2021.04

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  2024.03

  Kwansei Gakuin University, School of Science and Technology, Department of Chemistry

Research Areas 【 Display / hide 】

Research Areas 【 Display / hide 】

• Nanotechnology/Materials / Synthetic organic chemistry

Research Keywords 【 Display / hide 】

Research Keywords 【 Display / hide 】

• ケミカルバイオロジー

• 光化学

• 有機合成化学

Papers 【 Display / hide 】

Papers 【 Display / hide 】

• Acridinium amidate as a hydrogen-bonding photocatalyst for direct decarboxylative alkylation of native carboxylic acids

  Duc An Truong, Soichiro Mori, Taiki Ninomiya, Ryoya Niwa, Bumpei Maeda, Haruka Fujino, Masayuki Inoue, Kohsuke Ohmatsu, Takashi Ooi

  Chemical Science (Royal Society of Chemistry (RSC))   2026.04

  ISSN  2041-6520

  　View Summary

  The direct generation of carbon radicals from carboxylic acids under visible-light photocatalysis offers an appealing strategy for molecular diversification.

  • Access to Document (DOI)

• Photoinduced dehydrogenation of protected piperazines

  Kokoro Nowaki, Bumpei Maeda, Kei Murakami

  Chemistry Letters (Oxford University Press (OUP))  53 ( 3 )  2024.03

  ISSN  0366-7022

  　View Summary

  Abstract
  
  Piperazine represents one of the most important building blocks of pharmaceuticals. Hence, the development of various piperazine derivatives is important. Herein we report photoinduced dehydrogenation of protected piperazines. The reaction proceeded with various alkyl-substituted piperazines. The resulting products have electron-rich olefin moieties that can react with benzyne, carbene, or acyl anhydride.

  • Access to Document (DOI)

• Functionalized Polyamine Synthesis with Photoredox Catalysis

  Yuta Makihara, Bumpei Maeda, Ryohei Akiyoshi, Daisuke Tanaka, Kei Murakami

  Chemistry – A European Journal (Wiley)  30 ( 15 )  2024.02

  ISSN  0947-6539

  　View Summary

  Abstract
  
  Polyamines, such as putrescine and spermidine, are pivotal in various biological processes across living organisms. Despite their significance, structurally modified polyamines offer a less‐explored avenue for discovering bioactive compounds. The limitation is attributed to the synthetic difficulty of accessing functionalized polyamines. In this study, we accomplished photoredox‐catalyzed functionalization of polyamines to diversify their structure. The rapid functionalization allows attaching fluorophores to the target polyamine, facilitating the development of molecular probes for advancing chemical biology studies.

  • Access to Document (DOI)

• Synthesis of <i>N</i>-β-brominated alkenyl isothiocyanates <i>via</i> dehydrogenation of alkyl isothiocyanates

  Bumpei Maeda, Ryohei Akiyoshi, Daisuke Tanaka, Kohei Sato, Kei Murakami

  Chemical Communications (Royal Society of Chemistry (RSC))  60 ( 24 ) 6015 - 6018 2024

  ISSN  1359-7345

  　View Summary

  A new dehydrogenative synthesis of alkenyl isothiocyanates has been developed; the reaction provides compounds with bromo and isothiocyanate groups. The products are applicable to various further transformations.

  • Access to Document (DOI)

• Recent advancement in the synthesis of isothiocyanates

  Bumpei Maeda, Kei Murakami

  Chemical Communications (Royal Society of Chemistry (RSC))  60 ( 21 ) 2839 - 2864 2024

  ISSN  1359-7345

  　View Summary

  Isothiocyanates exhibit diverse bioactivities and reactivities. This review describes a comprehensive summary of recent advances in isothiocyanate synthesis with a focus on substrate categorization.

  • Access to Document (DOI)

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Reviews, Commentaries, etc. 【 Display / hide 】

Reviews, Commentaries, etc. 【 Display / hide 】

• イソチオシアナートの有機合成化学的展開

  前田文平

  アグリバイオ  2025.06

• Transformation with Neutral Frustrated Radical Pairs

  Bumpei Maeda

  Journal of Synthetic Organic Chemistry, Japan (The Society of Synthetic Organic Chemistry, Japan)  83 ( 3 ) 239 - 240 2025.03

  ISSN  0037-9980

  • Access to Document (DOI)

• ケトンの新たな骨格変換法

  前田文平

  月刊化学  2025.01

Courses Taught 【 Display / hide 】

Courses Taught 【 Display / hide 】

• LABORATORIES IN SCIENCE AND TECHNOLOGY

  2026

• LABORATORY IN SCIENCE

  2026

• LABORATORIES IN CHEMISTRY 2

  2026

• LABORATORY IN SCIENCE

  2025

• LABORATORIES IN CHEMISTRY 2

  2025

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Committee Experiences 【 Display / hide 】

Committee Experiences 【 Display / hide 】

• 2026.04

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  2026.05

  実行委員, 第90回有機合成化学協会関東支部シンポジウム

• 2025.10

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  2026.05

  実行委員, 第13回慶應有機化学若手シンポジウム実行委員会

• 2024.10

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  2025.05

  実行委員, 第12回慶應有機化学若手シンポジウム実行委員会