Efficient NO equivalent for activation of molecular oxygen and its applications in transition-metal-free catalytic aerobic alcohol oxidation |
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Authors: | Xie Yi Mo Weimin Xu Dong Shen Zhenlu Sun Nan Hu Baoxiang Hu Xinquan |
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Institution: | College of Chemical Engineering and Material Sciences, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China. |
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Abstract: | tert-Butyl nitrite (TBN) was identified as an efficient NO equivalent for the activation of molecular oxygen. The unique property of TBN enabled TEMPO-catalyzed aerobic alcohol oxidation to be performed in high-volume efficiency. Up to a 16,000 turnover number was achieved in this transition-metal-free aerobic catalytic system. Under the optimal reaction conditions, various alcohols were converted into their corresponding carbonyl compounds with TEMPO/HBr/TBN as catalyst. The newly developed method was suitable for the oxidation of solid substrate alcohols with high melting point and/or low solubility under the help of minimum solvent to form a slurry. |
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