Guo, Haixin; Duereh, Alif; Su, Yaqiong; Hensen, Emiel J. M.; Qi, Xinhua; Smith, Richard Lee Jr. published the artcile< Mechanistic role of protonated polar additives in ethanol for selective transformation of biomass-related compounds>, COA of Formula: C19H34O2, the main research area is mechanistic protonated polar ethanol transformation biomass.
We report on a combined exptl., spectroscopic and theor. study of acid catalyzed dehydration-etherification of fructose in ethanol for understanding the mechanistic role of polar solvent additives and product selectivity. Herein, we show that polar solvent additives (e.g. THF, acetone, acetonitrile, gamma-valerolactone, DMSO) protonated with a common solid acid catalyst in ethanol allow transformation of biomass-related compounds into desired dehydration or etherification products. Fructose in ethanol with DMSO additive is selectively transformed into 5-hydroxymethylfurfural with negligible formation of 5-ethoxymethylfurfural due to preferential DMSO protonation according to its polarity. Spectroscopic methods and d. functional theory show that additives having higher polarity than ethanol are readily protonated and act as the key catalytic protonation species and as the key stabilization species for reaction intermediates. Understanding the mechanism of protonated polar additives in reaction systems allows one to tailor selectivity in acid-catalyzed dehydration-etherification schemes and to develop sustainable chem. for biomass resources.
Applied Catalysis, B: Environmental published new progress about Alcoholysis. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.
Referemce:
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