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Variation in the regioselectivity of levulinic acid bromination in ionic liquids |
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| Authors: | Alexander G. Zavozin Natalya E. Kravchenko Sergei G. Zlotin |
| Affiliation: | a N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences (ZIOC RAS), 47 Leninsky prosp., Moscow 119991, Russia b Merck KGaA, Frankfurter Strasse 250, D-64293 Darmstadt, Germany |
| Abstract: | The reaction of levulinic acid and its esters with bromine in ionic liquids results in the formation of 3-bromo derivatives as the major products and not the 5-bromo substituted isomers, which are typically formed in organic solvents. The bromination of levulinic acid in ionic liquids in the presence of urea leads to the formation of 5-bromolevulinic acid. |
| Keywords: | Levulinic acid Bromination Regioisomers Ionic liquids |
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