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Cited by 771

The DOI matches its Crossref record; 78 of the 78 references it cites were found in a registry or an index.

Benzoxazole-Linked Ultrastable Covalent Organic Frameworks for Photocatalysis

Wei, Pi-Feng, Qi, Ming-Zhu, Wang, Zhi-Peng, Ding, San-Yuan, Yu, Wei, Liu, Qiang, Wang, Li-Ke, Wang, Huai-Zhen, An, Wan-Kai, Wang, Wei·2018·Journal of the American Chemical Society
DOI 10.1021/jacs.8b00571
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Abstract

The structural uniqueness of covalent organic frameworks (COFs) has brought these new materials great potential for advanced applications. One of the key aspects yet to be developed is how to improve the robustness of covalently linked reticular frameworks. In order to make the best use of π-conjugated structures, we develop herein a "killing two birds with one stone" strategy and construct a series of ultrastable benzoxazole-based COFs (denoted as LZU-190, LZU-191, and LZU-192) as metal-free photocatalysts. Benefiting from the formation of benzoxazole rings through reversible/irreversible cascade reactions, the synthesized COFs exhibit permanent stability in the presence of strong acid (9 M HCl), strong base (9 M NaOH), and sunlight. Meanwhile, reticulation of the benzoxazole moiety into the π-conjugated COF frameworks decreases the optical band gap and therefore increases the capability for visible-light absorption. As a result, the excellent photoactivity and unprecedented recyclability of LZU-190 (for at least 20 catalytic runs, each with a product yield of 99%) have been illustrated in the visible-light-driven oxidative hydroxylation of arylboronic acids to phenols. This contribution represents the first report on the photocatalytic application of benzoxazole-based structures, which not only sheds new light on the exploration of robust organophotocatalysts from small molecules to extended frameworks but also offers in-depth understanding of the structure-activity relationship toward practical applications of COF materials.

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Metadata

Authors
Wei, P.-F., Qi, M.-Z., Wang, Z.-P., Ding, S.-Y., Yu, W., Liu, Q., Wang, L.-K., Wang, H.-Z., An, W.-K., & Wang, W.
Venue
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Published
2018-03-27
Volume
140
Issue
13
Pages
4623-4631
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
DOI
10.1021/jacs.8b00571
OpenAlex
W2795057659
Cited by
771
References
78
FWCI
27.83
Type
journal article
Language
en
Open access
closed

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