Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 11, Pages 3050-3054Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201610964
Keywords
biomass; ethanolamine; heterogeneous catalysis; reductive amination; ruthenium catalyst
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Funding
- National Natural Science Foundation of China [21373206, 21690084, 21673228]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB17020100]
- National Key Projects for Fundamental Research and Development of China [2016YFA0202801]
- China Postdoctoral Science Foundation [2014M560223]
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Transformation of biomass into valuable nitrogen-containing compounds is highly desired, yet limited success has been achieved. Here we report an efficient catalyst system, partially reduced Ru/ZrO2, which could catalyze the reductive amination of a variety of biomass-derived aldehydes/ketones in aqueous ammonia. With this approach, a spectrum of renewable primary amines was produced in good to excellent yields. Moreover, we have demonstrated a two-step approach for production of ethanolamine, a large-market nitrogen-containing chemical, from lignocellulose in an overall yield of 10%. Extensive characterizations showed that Ru/ZrO2-containing multivalence Ru association species worked as a bifunctional catalyst, with RuO2 as acidic promoter to facilitate the activation of carbonyl groups and Ru as active sites for the subsequent imine hydrogenation.
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