Highly selective oxidation of alcohols catalyzed by Cu(II)-Schiff base-SBA-15 with hydrogen peroxide in water |
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Authors: | Pan Wang Zhengping Dong Yaojie Lei Yun Du Hui Li Honglei Yang Yunyu Nie Jiantai Ma |
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Affiliation: | 1. State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People’s Republic of China 2. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People’s Republic of China
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Abstract: | An efficient catalyst for selective oxidation of alcohols was prepared by grafting the Cu(II) Schiff base complex onto the channels of mesoporous silica material SBA-15. The characterizations illustrated that the functionalized SBA-15 maintained the primary hexagonally ordered mesoporous structure, and the Cu(II) Schiff base complexes were bonded inside the mesoporous channels of SBA-15. The selective oxidation of benzyl alcohol was carried out in water phase with hydrogen peroxide. The C6H5CH2OH conversion could reach 98.5 % with 100 % of the selectivity to C6H5CHO under the optimum conditions. The catalyst could also react well on the selective oxidation of other primary alcohols. |
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