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Lead-free Cs3Bi2Br9 perovskite: A recoverable heterogeneous photocatalyst for the C3 arylation of quinoxalin-2(1H)-ones.

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Title: Lead-free Cs3Bi2Br9 perovskite: A recoverable heterogeneous photocatalyst for the C3 arylation of quinoxalin-2(1H)-ones.
Authors: Zhang, Shuai-Zheng1, Mo, Li-Ping1 moliping@hebtu.edu.cn, Zhang, Zhan-Hui1 zhanhui@hebtu.edu.cn
Source: Molecular Catalysis. Nov2024, Vol. 568, pN.PAG-N.PAG. 1p.
Subjects: Perovskite, Photocatalysts, Arylation, Quinoxalines, Phenylhydrazine
Abstract: • A lead-free perovskite Cs 3 Bi 2 Br 9 is employed as a photocatalyst. • Cs 3 Bi 2 Br 9 exhibits a high catalytic activity for visible-light-mediated C3 arylation of quinoxalin-2(1 H)-ones. • Various 3-arylquinoxalin-2(1 H)-one derivatives are obtained with high yields. • The reaction is performed in dimethyl carbonate with oxygen in air as oxidant at room temperature. • The catalytic system can be effectively operated in gram-scale, and the catalyst is stable and recyclable. A facile, practical and attractive approach has been developed for the C3 arylation of quinoxalin-2(1 H)-ones with phenylhydrazines using the lead-free perovskite Cs 3 Bi 2 Br 9 as heterogeneous photocatalyst. The reaction proceeded smoothly in dimethyl carbonate with oxygen in air as oxidant under light irradiation, furnishing 3-arylquinoxalin-2(1 H)-one derivatives in high yields. The developed recyclable system showed a broad substrate range, good functional group compatibility, mild conditions, photocatalyst recyclability, and gram-scale reactivity. [Display omitted] [ABSTRACT FROM AUTHOR]
Copyright of Molecular Catalysis is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Lead-free Cs3Bi2Br9 perovskite: A recoverable heterogeneous photocatalyst for the C3 arylation of quinoxalin-2(1H)-ones.
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Shuai-Zheng%22">Zhang, Shuai-Zheng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mo%2C+Li-Ping%22">Mo, Li-Ping</searchLink><relatesTo>1</relatesTo><i> moliping@hebtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhan-Hui%22">Zhang, Zhan-Hui</searchLink><relatesTo>1</relatesTo><i> zhanhui@hebtu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Molecular+Catalysis%22">Molecular Catalysis</searchLink>. Nov2024, Vol. 568, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Perovskite%22">Perovskite</searchLink><br /><searchLink fieldCode="DE" term="%22Photocatalysts%22">Photocatalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Arylation%22">Arylation</searchLink><br /><searchLink fieldCode="DE" term="%22Quinoxalines%22">Quinoxalines</searchLink><br /><searchLink fieldCode="DE" term="%22Phenylhydrazine%22">Phenylhydrazine</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • A lead-free perovskite Cs 3 Bi 2 Br 9 is employed as a photocatalyst. • Cs 3 Bi 2 Br 9 exhibits a high catalytic activity for visible-light-mediated C3 arylation of quinoxalin-2(1 H)-ones. • Various 3-arylquinoxalin-2(1 H)-one derivatives are obtained with high yields. • The reaction is performed in dimethyl carbonate with oxygen in air as oxidant at room temperature. • The catalytic system can be effectively operated in gram-scale, and the catalyst is stable and recyclable. A facile, practical and attractive approach has been developed for the C3 arylation of quinoxalin-2(1 H)-ones with phenylhydrazines using the lead-free perovskite Cs 3 Bi 2 Br 9 as heterogeneous photocatalyst. The reaction proceeded smoothly in dimethyl carbonate with oxygen in air as oxidant under light irradiation, furnishing 3-arylquinoxalin-2(1 H)-one derivatives in high yields. The developed recyclable system showed a broad substrate range, good functional group compatibility, mild conditions, photocatalyst recyclability, and gram-scale reactivity. [Display omitted] [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Molecular Catalysis is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.mcat.2024.114514
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Perovskite
        Type: general
      – SubjectFull: Photocatalysts
        Type: general
      – SubjectFull: Arylation
        Type: general
      – SubjectFull: Quinoxalines
        Type: general
      – SubjectFull: Phenylhydrazine
        Type: general
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      – TitleFull: Lead-free Cs3Bi2Br9 perovskite: A recoverable heterogeneous photocatalyst for the C3 arylation of quinoxalin-2(1H)-ones.
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            NameFull: Zhang, Shuai-Zheng
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            NameFull: Mo, Li-Ping
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            NameFull: Zhang, Zhan-Hui
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            – D: 01
              M: 11
              Text: Nov2024
              Type: published
              Y: 2024
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              Value: 568
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