Beilstein J. Org. Chem.2020,16, 351–361, doi:10.3762/bjoc.16.34
oligomericricinoleicacid from ricinoleic acid under solvent-free conditions. The reaction parameters containing reaction temperature, vacuum degree, amount of catalyst and reaction time were optimized and it was found that the reaction under the conditions of 190 °C and 50 kPa with 15 wt % of the [HSO3
mentioning that the IL catalyst can be used at least for five cycles with high catalytic activity. As a result, the protocol based on the IL catalyst, i.e. [HSO3-BDBU]H2PO4 shows great potential in industrial production of oligomericricinoleicacid from ricinoleic acid.
Keywords: bio-lubricant; ionic
liquids; oligomericricinoleicacid; ricinoleic acid; sustainable catalysis; Introduction
In recent years, the biomass has attracted much attention due to its abundance, renewability and potential of conversion to useful chemicals. It can’t be denied that the diverse transformation and utilization of
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Graphical Abstract
Scheme 1:
[HSO3-BDBU]H2PO4-promoted oligomerization and separation.