Abstract
The direct coupling of 3-iodochromen-4-ones with heteroaromatics has been achieved via a photochemical reaction. A variety of 3-heteroarylchromones was obtained in moderate to good yields from the corresponding 3-iodochromen-4-ones and heteroaromatics, such as pyrrole, furan, thiophene, and benzofuran. The reaction worked smoothly in acetonitrile under a mercury lamp without any additives, providing a catalyst- and base-free approach for the synthesis of 3-heteroarylchromones.
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Acknowledgments
This research was supported by the National Natural Science Foundation of China (No: 21372150), the Fundamental Research Funds for the Central Universities (No: GK261001095), and the Science and Innovation Funds of Graduate Programs of Shaanxi Normal University (No: 2009CXS013).
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Yang, Q., He, Y., Wang, T. et al. Synthesis of 3-heteroarylchromones via a photochemical reaction. Mol Divers 20, 9–16 (2016). https://doi.org/10.1007/s11030-015-9620-4
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DOI: https://doi.org/10.1007/s11030-015-9620-4