Journal
CATALYSTS
Volume 10, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/catal10080814
Keywords
ionic liquids; biomass; microwaves; Michael reaction; chalcone; dimethylmalonate
Categories
Funding
- Region Champagne Ardenne Excellence Framework [Amisolver program]
- ICMR
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We developed a synthesis of chiral ionic liquids from proline and one of its derivatives. Nine chiral ionic liquids were synthesized with yields from 78% to 95%. These synthesized ionic liquids played two roles in Michael reactions, as solvents, and as basic catalysts, where the ionic phase could also be reused at least five times without loss of activity. The yields up to 99% were improved by increasing the amount of dimethylmalonate from 1.2 equivalents to 3 or 4 equivalents. Furthermore, the reaction time could be reduced from 24 h to 45 min through microwaves activation.
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