期刊
NEW JOURNAL OF CHEMISTRY
卷 46, 期 42, 页码 20412-20418出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2nj04430g
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资金
- Major Incubation Project of Shenyang Normal University [ZD201903]
- Natural Science Foundation of Liaoning Province [2021-MS-240, 2019-ZD-0476, 202010012]
- Basic Scientific Project of the Universities in Liaoning Province [LJKQZ2021052]
- Provincial Innovation and Entrepreneurship Training Program for College Students [202210018]
- Engineering Technology Research Centre of Catalysis for Energy and Environment-Major Platform for Science and Technology of the Universities in Liaoning Province
In this study, a visible-light-induced three-component cascade reaction was successfully achieved using a two-dimensional imine-linked covalent organic framework (2D-COF-5) as the heterogeneous photocatalyst. The reaction proceeded selectively, environmentally friendly, and sustainably, leading to the synthesis of various C3 trifluoroalkyl and trifluoroalkenyl quinoxalin-2(1H)-one derivatives with high yields. The reusability of 2D-COF-5 was also investigated and showed good maintenance of photocatalytic performance, chemical structure, and appearance in eight recycling runs.
Herein, we report a visible-light-induced three-component cascade reaction of alkenes or alkynes with CF3SO2Na and quinoxalin-2(1H)-one derivatives. In this reaction, a photoactive two-dimensional imine-linked covalent organic framework (2D-COF-5) was employed as the heterogeneous photocatalyst. Benefiting from the excellent photoactivity, stability, and inherent heterogeneous nature of 2D-COF-5, this visible-light-induced three-component cascade reaction occurred smoothly in a selective, green, and sustainable manner. A wide range of C3 trifluoroalkyl and trifluoroalkenyl quinoxalin-2(1H)-one derivatives were produced in satisfying yields. A preliminary investigation of the reusability for 2D-COF-5 demonstrated the good maintenance of photocatalytic performance, basic chemical structure, and micro-appearance in eight recycling runs.
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