Tetrahydropyranylation of Alcohols and Phenols Using Polystyrene Supported Lewis Acids as Catalysts |
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| Authors: | Yi Zhang Qianqian Dou Yuan Liu Liyan Dai Xiaozhong Wang Yingqi Chen |
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| Affiliation: | Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China |
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| Abstract: | Polystyrene supported TiCl4 (Ps‐TiCl4) and polystyrene supported FeCl3 (Ps‐FeCl3) were prepared by coordinating Lewis acids with polystyrene. The catalysts were characterized by TGA, BET, SEM, IR and pyridine‐adsorbed IR. The loading of Ps‐TiCl4 and Ps‐FeCl3 were 0.35 and 0.3 mmol·g?1 respectively. Both catalysts were found to be efficient for the tetrahydropyranylation and detetrahydropyranylation of various alcohols and phenols in different solvents. Two catalysts can be recovered and reused for five times with good activity. |
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| Keywords: | tetrahydropyranylation/detetrahydropyranylation Ps‐TiCl4 Ps‐FeCl3 polystyrene supported Lewis acids |
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