The platinum-catalyzed oxidation of inulin

Verraest, Dorine L.; Peters, Joop A.; Bekkum, H. van

doi:10.1016/s0008-6215(97)10055-6

Cited by 22 publications

(15 citation statements)

References 16 publications

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“…Water solutions of inulin were partially (20%) oxidised with O 2 at the C 6 position over a Pt/C catalyst resulting in materials meeting various specifications. 347 Using the TEMPO/NaOCl/NaBr oxidation system, a 86% yield to C 6 oxidised inulin was obtained. 329 Inulin was the subject of many other modifications, notably by esterification and etherification reactions, to produce commercial products for applications in cosmetics or as drug carriers.…”

Section: Inulinmentioning

confidence: 99%

Conversion of biomass to selected chemical products

2012

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This critical review provides a survey illustrated by recent references of different strategies to achieve a sustainable conversion of biomass to bioproducts. Because of the huge number of chemical products that can be potentially manufactured, a selection of starting materials and targeted chemicals has been done. Also, thermochemical conversion processes such as biomass pyrolysis or gasification as well as the synthesis of biofuels were not considered. The synthesis of chemicals by conversion of platform molecules obtained by depolymerisation and fermentation of biopolymers is presently the most widely envisioned approach. Successful catalytic conversion of these building blocks into intermediates, specialties and fine chemicals will be examined. However, the platform molecule value chain is in competition with well-optimised, cost-effective synthesis routes from fossil resources to produce chemicals that have already a market. The literature covering alternative value chains whereby biopolymers are converted in one or few steps to functional materials will be analysed. This approach which does not require the use of isolated, pure chemicals is well adapted to produce high tonnage products, such as paper additives, paints, resins, foams, surfactants, lubricants, and plasticisers. Another objective of the review was to examine critically the green character of conversion processes because using renewables as raw materials does not exempt from abiding by green chemistry principles (368 references).

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Section: Inulinmentioning

confidence: 99%

Conversion of biomass to selected chemical products

2012

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“…It is generally true that homogeneous catalysts will give better results for the modification of insoluble polymeric substrates. Nevertheless, inulin with a DP of ca 30 could be oxidised to the uronic acid level at the primary positions (C-6) with a DS ox of ca 0.20 under such conditions [123], and C-6 oxidation of a galactan over platinum to the uronic acid level with a DS ox of ca 0.15 has also been achieved [121, 122, 124]. Purification was carried out by precipitation followed by membrane filtration.…”

Section: Oxidationmentioning

confidence: 99%

Chemical Modification of Polysaccharides

Cumpstey¹

2013

ISRN Organic Chemistry

213

117

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This review covers methods for modifying the structures of polysaccharides. The introduction of hydrophobic, acidic, basic, or other functionality into polysaccharide structures can alter the properties of materials based on these substances. The development of chemical methods to achieve this aim is an ongoing area of research that is expected to become more important as the emphasis on using renewable starting materials and sustainable processes increases in the future. The methods covered in this review include ester and ether formation using saccharide oxygen nucleophiles, including enzymatic reactions and aspects of regioselectivity; the introduction of heteroatomic nucleophiles into polysaccharide chains; the oxidation of polysaccharides, including oxidative glycol cleavage, chemical oxidation of primary alcohols to carboxylic acids, and enzymatic oxidation of primary alcohols to aldehydes; reactions of uronic-acid-based polysaccharides; nucleophilic reactions of the amines of chitosan; and the formation of unsaturated polysaccharide derivatives.

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“…Verraest et al [92] investigated the catalytic oxidation of methylfructofuranoside and of inulin. The aim was to prepare polycarboxylates that could be used in detergents because of their sequestering properties for calcium.…”

Section: Catalytic Oxidation Of Mono-and Di-saccharidesmentioning

confidence: 99%