Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 8, Issue 27, Pages 9962-9967Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.0c03413
Keywords
Ruthenium catalysis; Homogeneous catalysis; Amination; Recycling; Reactive ionic liquid; Thermomorphic biphasic system
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [56091768]
- DFG, German Research Foundation [56091768]
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A reactive ionic liquid was successfully applied in the homogeneous ruthenium-catalyzed alcohol amination for the first time. Through detailed investigation of the phase behavior and the application of sulfonated ligands, a biphasic system was developed, which fulfils several key points of a sustainable process. This strategy allows, without use of additional volatile organic compounds, a pure product phase to be obtained, enabling the catalyst to be used in repetitive recycling runs. Hence, the productivity of the catalyst was increased fivefold to a cumulative turnover number of more than 2500, which reflects a particularly high catalyst productivity for homogeneous ruthenium-catalyzed alcohol amination.
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