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Catalysts 2017, 7(8), 228; doi:10.3390/catal7080228

Direct Conversion of Propylene Oxide to 3-Hydroxy Butyric Acid Using a Cobalt Carbonyl Ionic Liquid Catalyst

Department of Applied Chemistry, Kookmin University, 861-1 Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Korea
Authors to whom correspondence should be addressed.
Received: 15 June 2017 / Revised: 22 July 2017 / Accepted: 27 July 2017 / Published: 30 July 2017
(This article belongs to the Special Issue Organocatalysis in Ionic Liquids)
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The reported catalytic system demonstrates the possibility of efficient mass production of 3-hydroxybutyric acid (3-HBA) from inexpensive raw materials. The direct coupling of propylene oxide, water, and CO was catalyzed by 1-butyl-3-methylimidazolium cobalt tetracarbonyl ([Bmim][Co(CO)4]) ionic liquid to form 3-HBA with >99% conversion (49% selectivity) under mild conditions. View Full-Text
Keywords: ionic liquid; β-hydroxy carboxylic acids; [Bmim][Co(CO)4]; carbonylation; water ionic liquid; β-hydroxy carboxylic acids; [Bmim][Co(CO)4]; carbonylation; water

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Rajendiran, S.; Park, G.; Yoon, S. Direct Conversion of Propylene Oxide to 3-Hydroxy Butyric Acid Using a Cobalt Carbonyl Ionic Liquid Catalyst. Catalysts 2017, 7, 228.

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