Abstract
In this study, we developed methods for the one pot environmentally benign synthesis of benzimidazoles by cobalt ascorbic acid complex coated on TiO2 nanoparticles via aerobic photooxidative cyclization reactions. Easy work-up procedure, reusability of the catalyst and scalable to the multi-mole scale, which is valuable for an industrial process make these catalytic systems highly attractive. Also, the combination of photocatalytic and catalytic reactions presented here may help to develop a new strategy towards the development of photocatalysis-based organic synthesis.
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Acknowledgements
Support for this work by Research Council of University of Birjand and “Iran Science Elites Federation” is highly appreciated. We also thank Dr. M. M. Najafpour and Dr. S. Zakavi from IASBS, Zanjan, Iran, for their valuable comments on photochemical reactions.
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Feizpour, F., Jafarpour, M. & Rezaeifard, A. A Tandem Aerobic Photocatalytic Synthesis of Benzimidazoles by Cobalt Ascorbic Acid Complex Coated on TiO2 Nanoparticles Under Visible Light. Catal Lett 148, 30–40 (2018). https://doi.org/10.1007/s10562-017-2232-0
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DOI: https://doi.org/10.1007/s10562-017-2232-0