Regioselective Hydrogenation of Itaconic Acid to γ‐Isovalerolactone by Transition‐Metal Nanoparticle Catalysts

Current methods for hydrogenation of bio‐derived itaconic acid (IA) lead to a mixture of isomeric lactone products. Transition‐metal nanoparticles (TM‐NPs), in situ‐generated through thermolysis of TM(0) (Ru, Fe, W, Cr) carbonyls, in particular Ru‐NPs, were found to catalyze regioselective hydrogena...

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Bibliographic Details
Published in:ChemSusChem 2019-03, Vol.12 (5), p.973-977
Main Authors: Gowda, Ravikumar R., Chen, Eugene Y.‐X.
Format: Article
Language:English
Subjects:
Aluminum oxide
Aqueous solutions
Carbonyls
Catalysis
Catalysts
Chromium
Hydrogenation
Itaconic acid
nanoparticle catalyst
Nanoparticles
Regioselectivity
syngas
Synthesis gas
Tungsten
γ-isovalerolactone
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Summary:Current methods for hydrogenation of bio‐derived itaconic acid (IA) lead to a mixture of isomeric lactone products. Transition‐metal nanoparticles (TM‐NPs), in situ‐generated through thermolysis of TM(0) (Ru, Fe, W, Cr) carbonyls, in particular Ru‐NPs, were found to catalyze regioselective hydrogenation of IA by syngas (2 H2/CO) into γ‐isovalerolactone (GiVL) in approximately 70 % isolated yield. Key sustainability features of this new route include: a one‐pot direct transformation of bio‐renewable IA into value‐added GiVL selectively, use of inexpensive and renewable syngas in aqueous solution, and development of a supported recyclable NP catalyst system, Al2O3‐Ru‐NPs. Nano‐Bio: In situ‐generated transition‐metal nanoparticles (Ru‐NPs) catalyze regioselective hydrogenation of itaconic acid (IA) by syngas (2 H2/CO) into γ‐isovalerolactone (GiVL) in approximately 70 % isolated yield. Key sustainability features of this new route include: a one‐pot direct transformation of bio‐renewable IA into value‐added GiVL selectively, use of inexpensive and renewable syngas in aqueous solution, and development of a supported recyclable NP catalyst system, Al2O3‐Ru‐NPs.
ISSN:1864-5631
1864-564X
DOI:10.1002/cssc.201802878