前田 文平 ( マエダ ブンペイ )

Maeda, Bumpei

写真a

所属(所属キャンパス)

理工学部 化学科 ( 矢上 )

職名

助教(有期)

経歴 【 表示 / 非表示

  • 2023年04月
    -
    2024年03月

    独立行政法人日本学術振興会 特別研究員(DC2)

  • 2024年04月
    -
    継続中

    慶應義塾大学, 理工学部 化学科, 助教(有期)

学歴 【 表示 / 非表示

  • 2015年04月
    -
    2019年03月

    名古屋大学, 理学部, 化学科

  • 2019年04月
    -
    2021年03月

    名古屋大学, 大学院理学研究科, 物質理学専攻(化学系)

  • 2021年04月
    -
    2024年03月

    関西学院大学, 理工学部, 化学科

 

研究分野 【 表示 / 非表示

  • ナノテク・材料 / 有機合成化学

研究キーワード 【 表示 / 非表示

  • ケミカルバイオロジー

  • 光化学

  • 有機合成化学

 

論文 【 表示 / 非表示

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

    Truong D.A., Mori S., Ninomiya T., Niwa R., Maeda B., Fujino H., Inoue M., Ohmatsu K., Ooi T.

    Chemical Science (Royal Society of Chemistry (RSC))  2026年04月

    ISSN  2041-6520

     概要を見る

    The direct generation of carbon radicals from carboxylic acids under visible-light photocatalysis offers an appealing strategy for molecular diversification. Here, we report a decarboxylative Giese-type addition using a zwitterionic acridinium amidate as a uniquely effective photocatalyst, which enables the efficient and selective activation and functionalization of a broad range of carboxylic acids without an external base or oxidant. The catalytic process relies on the formation of a hydrogen-bonded complex between the carboxylic acid and amidate, which triggers proton-coupled electron transfer upon photoexcitation to generate the corresponding carboxyl radical. This method featuring neutral conditions demonstrates excellent functional group tolerance and is applicable to structurally demanding substrates, including complex natural products and pharmaceutically relevant compounds.

  • Photoinduced dehydrogenation of protected piperazines

    Nowaki K., Maeda B., Murakami K.

    Chemistry Letters (Oxford University Press (OUP))  53 ( 3 )  2024年03月

    ISSN  0366-7022

     概要を見る

    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.

  • Functionalized Polyamine Synthesis with Photoredox Catalysis

    Makihara Y., Maeda B., Akiyoshi R., Tanaka D., Murakami K.

    Chemistry A European Journal (Wiley)  30 ( 15 )  2024年02月

    ISSN  0947-6539

     概要を見る

    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.

  • Synthesis of N-β-brominated alkenyl isothiocyanates via dehydrogenation of alkyl isothiocyanates

    Maeda B., Akiyoshi R., Tanaka D., Sato K., Murakami K.

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

    ISSN  1359-7345

     概要を見る

    This study presents a new dehydrogenative synthesis of alkenyl isothiocyanates, providing compounds with bromo and isothiocyanate groups. These reactive functionalities offer versatility for further transformations. Application in an amine sensor utilizing a coumarin-attached product demonstrates practical utility. This streamlined approach facilitates access to alkenyl isothiocyanates, valuable tools for biological studies.

  • Recent advancement in the synthesis of isothiocyanates

    Maeda B., Murakami K.

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

    ISSN  1359-7345

     概要を見る

    Isothiocyanates exhibit various biological characteristics, including antimicrobial, anti-inflammatory, and anticancer properties. Their significance extends to synthetic chemistry, where they serve as valuable platforms for versatile transformations. Consequently, they have attracted the attention of biologists and chemists. This review summarizes recent advancements in the synthesis of isothiocyanates. Access to a variety of starting materials is important to prepare isothiocyanates with diverse structures. This review categorizes synthetic methods into three types based on the starting materials and functional groups: (i) type A, derived from primary amines; (ii) type B, derived from other nitrogen functional groups; and (iii) type C, derived from non-nitrogen groups. Recent trends in synthetic methods have revealed the prevalence of type-A reactions derived from primary amines. However, type B reactions have rarely been reported. Notably, over the past four years, there has been a notable increase in type C reactions, indicating a growing interest in non-nitrogen-derived isothiocyanates. Overall, this review not only outlines the advancements in the synthesis of isothiocyanates but also highlights trends in the methodology.

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総説・解説等 【 表示 / 非表示

  • 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年06月

  • Neutral Frustrated Radical Pairsによる分子変換反応

    前田文平

    Journal of Synthetic Organic Chemistry, Japan (The Society of Synthetic Organic Chemistry, Japan)  83 ( 3 ) 239 - 240 2025年03月

    ISSN  0037-9980

  • ケトンの新たな骨格変換法

    前田文平

    月刊化学  2025年01月

 

担当授業科目 【 表示 / 非表示

  • 理工学基礎実験

    2026年度

  • 自然科学実験

    2026年度

  • 化学実験第2

    2026年度

  • 自然科学実験

    2025年度

  • 化学実験第2

    2025年度

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委員歴 【 表示 / 非表示

  • 2026年04月
    -
    2026年05月

    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年10月
    -
    2026年05月

    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年10月
    -
    2025年05月

    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