O-Acetylation of cellulose and monosaccharides using a zinc based ionic liquid

Abbott, Andrew P.; Bell, Thomas; Handa, Sandeep; Stoddart, Barry

doi:10.1039/b511691k

Cited by 221 publications

(175 citation statements)

References 19 publications

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“…The same catalytic DES (ChCl-ZnCl2, 1:2) was successfully employed for the acetylation of monosaccharides. [52] In contrast, DES formed from trimethylcyclohexyl ammonium methanesulfonate and ptoluenesulfonic acid (TCyAMsO-p-TsOH, 1:1 molar ratio) has been described as a good catalytic reaction medium for smaller alcohols (less than C8). Thus, aliphatic and aromatic carboxylic acids were heated (60-80 ºC) in the mixture TCyAMsO-p-TsOH (1:1) during 2-17 h producing the corresponding esters with yields ranging from 16 to 97%.…”

Section: Esterification-type Reactionsmentioning

confidence: 99%

Deep Eutectic Solvents: The Organic Reaction Medium of the Century

et al. 2016

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This microreview summarizes the use of deep eutectic solvents (DES) and related melts in Organic Synthesis. This type of solvents combine the great advantages of other proposed environmentally benign alternative solvents, such as low toxicity, high availability, low inflammability, high recyclability, low volatility and low price, avoiding many disadvantages of these neoteric media. The fact that many of the components of the mixture come directly from Nature assures their biodegradability and renewability. The classification and distribution of the reactions in different sections along this microreview, as well as the emphasis paid to their scope, easily allows a general reader to understand the actual state of art, and the great opportunities opened, not only for academic proposes but also for industry.

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Section: Esterification-type Reactionsmentioning

confidence: 99%

Deep Eutectic Solvents: The Organic Reaction Medium of the Century

et al. 2016

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“…Acylation of cellulose with linear chain acylation reagents such as anhydride or chloride is the most common method to produce cellulosic bioproducts. Because of the wide application of cellulose acetate, cellulose acetylation with acetic anhydride or acetyl chloride in ILs has been extensively studied, and cellulose acetates with high degree of substitution (DS) were easily prepared (Wu et al, 2004;Abbott et al, 2005;Heinze et al, 2005;Barthel & Heinze, 2006;Granstrom et al, 2008). Furthermore, ILs were also be reported as reaction media for cellulose modification with other liquid reagents, such as carbanilation with phenyl isocyanate (Barthel & Heinze, 2006;Schlufter et al, 2006), acylation with lauroyl chloride (Barthel & Heinze, 2006), and perpropionylation with propionic anhydride (Schlufter et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Chemical Modification of Cellulose with Succinic Anhydride in Ionic Liquid with or without Catalysts

Liu¹,

Zhang²,

Wy³

et al. 2011

Ionic Liquids: Applications and Perspectives

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“…8 These new Lewis acidic solvents have been successfully employed for a variety of reactions. [9][10][11] We have also reported a eutectic mixture of choline chloride and urea which forms an ionic liquid analogue with the advantage of being non-toxic and readily biodegradable but has no Lewis acidity. 12 Two uses of this mixture for inorganic applications have recently been reported.…”

Section: Introductionmentioning

confidence: 99%