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Huang, Yao-Bing; Yan, Long; Chen, Meng-Yuan; Guo, Qing-Xiang; Fu, Yao
Green chemistry : an international journal and green chemistry resource : GC, 01/2015, Letnik: 17, Številka: 5Journal Article
Direct hydrogenolysis of the aromatic C sub(sp) super(2)-O bonds in both phenols and phenyl ethers to form arenes selectively is a core enabling technology that can expand greatly the scope of chemical manufacture from biomass. However, conventional hydrogenolysis of phenols typically led to aromatic ring saturation instead of the cleavage of the C sub(sp) super(2)-O bonds. Herein, we report a recyclable Ru-WOx bifunctional catalyst that showed high catalytic activities for the hydrogenolysis of a wide range of phenols and phenyl ethers, including dimeric lignin model compounds and the primitive phenols separated from pyrolysis lignin, to form arenes selectively in water. Preliminary mechanistic studies supported that the reactions occurred viaa direct cleavage of the C sub(sp) super(2)-O bonds and the concerted effects of the hydrogenating Ru sites and the Lewis acidic W sites are the key to such an unusual reactivity.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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