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[期刊论文]

Cercosporin-bioinspired photoreductive activation of aryl halides under mild conditions

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author:

Tang, Zhaocheng (Tang, Zhaocheng.) [1] | Li, Jia (Li, Jia.) [2] | Lin, Fulin (Lin, Fulin.) [3] | Unfold

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EI

Abstract:

Bioinspired by the naturally-occurring cercosporin-driven infection process of plant pathogenic fungi Cercospora sp., here we took advantage of the photophysical properties of cercosporin, and used it as a metal-free photocatalyst to develop an unprecedented cercosporin-driven photocatalysis under mild conditions. Furthermore, the forming conditions and excited-state dynamics of radical anions of cercosporin have been systematically investigated. In particular, transient femtosecond absorption spectroscopy was employed to unveil the excited-state dynamics of cercosporin, a key step that dictates its function in photocatalysis. We showed that cercosporin was able to be sufficiently activated through a two-step excitation, ultimately boosting its photocatalytic activity for the reductive activation of substrates with very low reactivity. Since large quantities of cercosporin can be easily produced through microbial fermentation like other commercially available perylenequinonoid pigments, such as hypocrellin A and hypocrellin B, we expect that all advantages of these naturally-occurring perylenequinonoid pigments as green photocatalysts can be further explored to a wide range of synthetic transformations. © 2019 Elsevier Inc.

Keyword:

Absorption spectroscopy Chemical activation Excited states Fungi Negative ions Photocatalytic activity

Community:

  • [ 1 ] [Tang, Zhaocheng]Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi; 214122, China
  • [ 2 ] [Li, Jia]Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi; 214122, China
  • [ 3 ] [Lin, Fulin]CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; Fujian; 350002, China
  • [ 4 ] [Lin, Fulin]Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen; 361021, China
  • [ 5 ] [Bao, Wenhao]Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi; 214122, China
  • [ 6 ] [Zhang, Shiwei]School of Pharmaceutical Science, Jiangnan University, Wuxi; 214122, China
  • [ 7 ] [Guo, Baodang]Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi; 214122, China
  • [ 8 ] [Huang, Shuping]College of Chemistry, Fuzhou University, Fuzhou; Fujian; 350108, China
  • [ 9 ] [Zhang, Yan]School of Pharmaceutical Science, Jiangnan University, Wuxi; 214122, China
  • [ 10 ] [Rao, Yijian]Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi; 214122, China

Reprint 's Address:

  • [zhang, yan]school of pharmaceutical science, jiangnan university, wuxi; 214122, china

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Source :

Journal of Catalysis

ISSN: 0021-9517

Year: 2019

Volume: 380

Page: 1-8

7 . 8 8 8

JCR@2019

6 . 5 0 0

JCR@2023

ESI HC Threshold:184

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 19

30 Days PV: 0

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