SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2024, Vol. 67 ›› Issue (3): 39-48.DOI: 10.1016/j.cjche.2023.09.014

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Photoinduced transposed Paternò-Büchi reaction for effective synthesis of high-performance jet fuel

Jinxiu Hu1,2,3, Xianlong Liu1,2,3, Yi Liu1, Kang Xue1,2,3,4, Chengxiang Shi1,2,3,4, Xiangwen Zhang1,2,3,4, Li Wang1,2,3,4, Ji-Jun Zou1,2,3,4, Lun Pan1,2,3,4,   

  1. 1 Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2 Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China;
    3 Zhejiang Institute of Tianjin University, Ningbo 315201, China;
    4 Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
  • 收稿日期:2023-05-21 修回日期:2023-08-16 出版日期:2024-03-28 发布日期:2024-06-01
  • 通讯作者: Lun Pan,E-mail address:panlun76@tju.edu.cn.
  • 基金资助:
    The authors appreciate the support from National Key Research and Development Program of China (2021YFC2103704), the National Natural Science Foundation of China (22222808, 21978200), and the Haihe Laboratory of Sustainable Chemical Transformations.

Photoinduced transposed Paternò-Büchi reaction for effective synthesis of high-performance jet fuel

Jinxiu Hu1,2,3, Xianlong Liu1,2,3, Yi Liu1, Kang Xue1,2,3,4, Chengxiang Shi1,2,3,4, Xiangwen Zhang1,2,3,4, Li Wang1,2,3,4, Ji-Jun Zou1,2,3,4, Lun Pan1,2,3,4,   

  1. 1 Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2 Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China;
    3 Zhejiang Institute of Tianjin University, Ningbo 315201, China;
    4 Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
  • Received:2023-05-21 Revised:2023-08-16 Online:2024-03-28 Published:2024-06-01
  • Contact: Lun Pan,E-mail address:panlun76@tju.edu.cn.
  • Supported by:
    The authors appreciate the support from National Key Research and Development Program of China (2021YFC2103704), the National Natural Science Foundation of China (22222808, 21978200), and the Haihe Laboratory of Sustainable Chemical Transformations.

摘要: High-energy-density fuels are important for volume-limited aerospace vehicles, but the increase in fuel energy density always leads to poor cryogenic performance. Herein, we investigated the transposed Paternò-Büchi reaction of biomass cyclic ketone and cyclic alkene to synthesize a new kind of alkyl-substituted polycyclic hydrocarbon fuel with high energy density and good cryogenic performance. The triplet-energy-quenching results and phosphorescent emission spectra reveal the sensitization mechanism of the reaction, including photosensitizer excitation, triplettriplet energy transfer, cyclization, and relaxation, and the possible reaction path was revealed by the density functional theory (DFT) calculations. The reaction conditions of photosensitizer type and addition, molar ratio of substrates, reaction temperature, and incident light intensity were optimized, with the target product yield achieving 65.5%. Moreover, the reaction dynamics of the reaction rate versus the light intensity are established. After the hydrogenation-deoxygenation reaction, three fuels with a high density of≥0.864-0.938 g·ml-1 and a low freezing point of < 55 ℃ are obtained. This work provides a benign and effective approach to synthesize high-performance fuels.

关键词: High-energy-density fuel, Transposed Paternò-Büchi reaction, Kinetics, Bioenergy, Photochemistry

Abstract: High-energy-density fuels are important for volume-limited aerospace vehicles, but the increase in fuel energy density always leads to poor cryogenic performance. Herein, we investigated the transposed Paternò-Büchi reaction of biomass cyclic ketone and cyclic alkene to synthesize a new kind of alkyl-substituted polycyclic hydrocarbon fuel with high energy density and good cryogenic performance. The triplet-energy-quenching results and phosphorescent emission spectra reveal the sensitization mechanism of the reaction, including photosensitizer excitation, triplettriplet energy transfer, cyclization, and relaxation, and the possible reaction path was revealed by the density functional theory (DFT) calculations. The reaction conditions of photosensitizer type and addition, molar ratio of substrates, reaction temperature, and incident light intensity were optimized, with the target product yield achieving 65.5%. Moreover, the reaction dynamics of the reaction rate versus the light intensity are established. After the hydrogenation-deoxygenation reaction, three fuels with a high density of≥0.864-0.938 g·ml-1 and a low freezing point of < 55 ℃ are obtained. This work provides a benign and effective approach to synthesize high-performance fuels.

Key words: High-energy-density fuel, Transposed Paternò-Büchi reaction, Kinetics, Bioenergy, Photochemistry