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Oxidative cyclo-rearrangement of helicenes into chiral nanographenes

Author

Listed:
  • Chengshuo Shen

    (Shanghai Jiao Tong University)

  • Guoli Zhang

    (Shanghai Jiao Tong University)

  • Yongle Ding

    (Shanghai Jiao Tong University)

  • Na Yang

    (Shanghai Jiao Tong University)

  • Fuwei Gan

    (Shanghai Jiao Tong University)

  • Jeanne Crassous

    (Univ Rennes, Institut des Sciences Chimiques de Rennes, UMR CNRS 6226)

  • Huibin Qiu

    (Shanghai Jiao Tong University)

Abstract

Nanographenes are emerging as a distinctive class of functional materials for electronic and optical devices. It is of remarkable significance to enrich the precise synthetic chemistry for these molecules. Herein, we develop a facile strategy to recompose helicenes into chiral nanographenes through a unique oxidative cyclo-rearrangement reaction. Helicenes with 7~9 ortho-fused aromatic rings are firstly oxidized and cyclized, and subsequently rearranged into nanographenes with an unsymmetrical helicoid shape through sequential 1,2-migrations. Such skeletal reconstruction is virtually driven by the gradual release of the strain of the highly distorted helicene skeleton. Importantly, the chirality of the helicene precursor can be integrally inherited by the resulting nanographene. Thus, a series of chiral nanographenes are prepared from a variety of carbohelicenes and heterohelicenes. Moreover, such cyclo-rearrangement reaction can be sequentially or simultaneously associated with conventional oxidative cyclization reactions to ulteriorly enrich the geometry diversity of nanographenes, aiming at innovative properties.

Suggested Citation

  • Chengshuo Shen & Guoli Zhang & Yongle Ding & Na Yang & Fuwei Gan & Jeanne Crassous & Huibin Qiu, 2021. "Oxidative cyclo-rearrangement of helicenes into chiral nanographenes," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22992-6
    DOI: 10.1038/s41467-021-22992-6
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    Cited by:

    1. Guoli Zhang & Jian Zhang & Yu Tao & Fuwei Gan & Geyu Lin & Juncong Liang & Chengshuo Shen & Yuebiao Zhang & Huibin Qiu, 2024. "Facile fabrication of recyclable robust noncovalent porous crystals from low-symmetry helicene derivative," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    2. Chengwen Li & Ying-Bo Shao & Xi Gao & Zhiyuan Ren & Chenhao Guo & Meng Li & Xin Li, 2023. "Enantioselective synthesis of chiral quinohelicenes through sequential organocatalyzed Povarov reaction and oxidative aromatization," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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