Functionalization of silica gel by ultrasound-assisted surface Suzuki coupling |
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| Affiliation: | 1. Department of Molecular and Cellular Engineering, JIBB, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India;2. Department of Computational Biology and Bioinformatics, JIBB, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India;1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. State Key Laboratory of Coal-based Low Carbon Energy, ENN Group, Langfang 065001, Hebei, China |
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| Abstract: | Mesoporous silica gel was functionalized by various organic functional groups using thiol-ene coupling of surface thiol groups with 4-vinylphenylboronic acid followed by Suzuki coupling with aromatic halides. For better performance, the synthesis was conducted under sonication. The presence of surface functional groups was confirmed by thermoanalysis, FT-IR spectroscopy and characteristic reactions of these groups. Solid-phase conditions of the synthesis eliminate the risk of side reactions of boronic acids. |
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| Keywords: | Silica gel Suzuki coupling Aryl halides Ultrasound |
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