Mechanism and malleability of glucose dehydration to HMF: entry points and water-induced diversions | Zendy

Sebastián Meier | Zendy

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Mechanism and malleability of glucose dehydration to HMF: entry points and water-induced diversions

Author(s) -

Sebastián Meier

Publication year - 2020

Publication title -

catalysis science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.635

H-Index - 115

eISSN - 2044-4761

pISSN - 2044-4753

DOI - 10.1039/c9cy02567g

Subject(s) - malleability , chemistry , block (permutation group theory) , dehydration , mechanism (biology) , catalysis , polyester , combinatorial chemistry , chemical engineering , organic chemistry , biochemistry , computer science , mathematics , engineering , philosophy , computer security , encryption , ciphertext , geometry , epistemology

The stoichiometric dehydration of glucose to 5-hydroxymethylfurfural (HMF) converts an abundant substrate to a versatile chemical. HMF formation can be optimised by using suitable solvents including ionic liquids and DMSO, and by cosolvents such as water. A prerequisite for efficient glucose influx into pathways to HMF is the isomerization of glucose to a ketose, typically the Lewis acid catalysed conversion to fructose. Here, solvent control of the influx of glucose into pathways to HMF is mapped through isotope tracing assays and through kinetic in situ observations. Diversions from the path to HMF in the presence of water are described for the popular CrCl3/DMSO system. Addition of water to this system favors the formation of a useful byproduct instead of a mixture of inert compounds. The water-enabled formation of this product is observed for a variety of catalytsts and solvents.

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