Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 6, Issue 3, Pages 2872-2877Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.7b02993
Keywords
Lignin-derived compounds; Aromatic ether bonds; Transfer hydrogenolytic cleavage; Biomass conversion; Isopropanol
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Funding
- National Natural Science Foundation of China [21673249]
- National Key Research and Development Program of China [2017YFA0403003]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [2017043]
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Cleavage of aromatic ether bonds is crucial for the valorization of lignin and its fragments, which is challenging under mild conditions because the bonds are very stable. Herein, we found that Ru/C could efficiently catalyze the cleavage of the aromatic ether bonds in various lignin-derived compounds via a transfer hydrogenolytic route using isopropanol as the hydrogen resource. Various lignin derived compounds could be efficiently cleaved over commercial Ru/C to generate the corresponding aliphatic alkanes, aliphatic alcohols and aromatic derivatives under milder conditions. A mechanism study indicated that the reaction occurred through the direct cleavage of aromatic ether bonds or the formation of the reaction phenyl ether.
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