Zur Darstellung der Glucosaminsäure

Pringsheim, Hans; Ruschmann, Gerhard

doi:10.1002/cber.19150480192

Cited by 40 publications

(7 citation statements)

References 3 publications

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“…In addition, the PdÀ Bi/C catalyst was recycled for 8 times and showed no apparent loss of catalytic performance. Compared with previously reported approaches, [22,23] this system exhibited some advantages, such as environment-friendly process, mild reactions, easy separation of GlcNA, and recyclable catalysts. Ohmi et al [25] demonstrated that Au/HT could effectively Scheme 6.…”

Section: Amino Sugar Acid As Productmentioning

confidence: 92%

“…The oxidation of glucosamine hydrochloride (GlcN-HCl) was carried out using yellow mercuric oxide as oxidizing agent, affording about 54 % yield of GlcNA. [22] After that, Wolfrom and Cron [23] investigated the conversion of crab containing chitin in 10 % HCl solution and purified the formed GlcN-HCl via a complicated process. Using previous method, [22] the transformation of the prepared GlcN-HCl employing reduced amount of oxidant was conducted, yielding 62 % of GlcNA.…”

Section: Amino Sugar Acid As Productmentioning

confidence: 99%

“…[22] After that, Wolfrom and Cron [23] investigated the conversion of crab containing chitin in 10 % HCl solution and purified the formed GlcN-HCl via a complicated process. Using previous method, [22] the transformation of the prepared GlcN-HCl employing reduced amount of oxidant was conducted, yielding 62 % of GlcNA. The use of yellow mercuric oxide induced difficulty in purification of GlcNA, which limited applications of GlcNA in the food and pharmaceutical fields.…”

Section: Amino Sugar Acid As Productmentioning

confidence: 99%

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Towards Shell Biorefinery: Advances in Chemical‐Catalytic Conversion of Chitin Biomass to Organonitrogen Chemicals

Dai

2020

ChemSusChem

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Chitin is the most abundant biopolymer after cellulose but it has not been fully utilized yet. Because of biologically fixed nitrogen, effective conversion of chitin or its derivatives to value‐added organonitrogen compounds is a promising strategy to valorize chitin biomass, which has attracted increasing attention. Recently, a novel concept of shell biorefinery has been proposed on account of the huge potentials of chitin valorization. Until now, a number of valuable organonitrogen chemicals, including amino sugars, amino alcohols, amino acids, and heterocyclic compounds, have been produced from chitin biomass. In this Minireview, the focus is on the recent advances in the synthesis of organonitrogen chemicals employing chitin biomass as starting material via different catalytic processes. An outlook on the challenges and opportunities for more effective valorization of chitin will be given.

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Section: Amino Sugar Acid As Productmentioning

confidence: 92%

Section: Amino Sugar Acid As Productmentioning

confidence: 99%

Section: Amino Sugar Acid As Productmentioning

confidence: 99%

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Towards Shell Biorefinery: Advances in Chemical‐Catalytic Conversion of Chitin Biomass to Organonitrogen Chemicals

Dai

2020

ChemSusChem

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“…[11] The initial work on GlcN oxidation into GlcNA was achieved by using the toxic mercuric oxide and the product yield was relatively low at ~55%. [12] With recent advances, the oxidation of biomass resources usually involves the use of O 2 or H 2 O 2 as the oxidant, and/or employs a base additive or basic support to assist the oxidation. Gu et al have conducted the reaction over an active charcoal-supported PdÀ Bi catalyst (PdÀ Bi/AC) to generate GlcNA with a satisfactory yield of ~70% by using O 2 gas.…”

Section: Introductionmentioning

confidence: 99%

Base‐free Air Oxidation of Chitin‐derived Glucosamine to Glucosaminic Acid by Zinc Oxide‐supported Gold Nanoparticles

Zheng

Zhang

et al. 2022

Chemistry An Asian Journal

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In this study, glucosaminic acid (GlcNA) was produced with the highest yield of ∼85% from chitin biomass‐derived glucosamine (GlcN) at 35 °C under atmospheric air in water, by using zinc oxide‐supported gold nanoparticles (Au/ZnO). The Au/ZnO catalyst prepared by the deposition‐precipitation (DP) method displayed remarkably superior catalytic performance to that prepared by the deposition‐reduction (DR) method, which led to >2‐fold enhancement in product yield. A lower apparent activation energy (Ea) was observed over the Au/ZnO (DP) for GlcNA formation compared with the Au/ZnO (DR) catalyst. Based on control tests and structural characterizations, the average particle size of Au nanoparticles (NPs) and the surface oxygen vacancy (OV) sites were the crucial factors on the catalytic activity. The work puts forward a green, mild and efficient approach to synthesize valuable amino acid from ocean‐based chitin biomass resources with air as the oxidant, adding on new possibilities of chitin biorefinery.

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“…In the literatures, there were a few reports about synthesis of ADGA. The classical synthesis of it from D-glucosamine involves the use of yellow mercuric oxide as an oxidant, 6 followed by a treatment with hydrogen sulfide, in a totally non-ecological process. The yields of the procedure were unsteady and the resulting mercuric sulfide was difficult to be separated from the products, which limited its applications to the food and pharmaceutical industries.…”

Section: Introductionmentioning

confidence: 99%

A Novel Synthesis of 2‐Amino‐2‐deoxy‐D‐gluconic Acid and Its Complexation with Cu(II) in Alkaline Medium

Xia

2006

Chin. J. Chem.

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A novel synthesis of the functional carbohydrate 2-amino-2-deoxy-D-gluconic acid was introduced and its complex formation with Cu(II) was investigated to obtain the stability constant for its further applications to the food and pharmaceutical industries. The equilibrium was investigated by spectrophotometric measurements and processed by dual-series linear regression method. Results: the yield of 2-amino-2-deoxy-D-gluconic acid is 70%. The complexation molar ratio is 1∶2, the molar apsorptivity of the complex is 39.906 L•mol -1 •cm -1 at 630 nm, and the stability constant β n is 6.24×10 5 .

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Zur Darstellung der Glucosaminsäure

Cited by 40 publications

References 3 publications

Towards Shell Biorefinery: Advances in Chemical‐Catalytic Conversion of Chitin Biomass to Organonitrogen Chemicals

Towards Shell Biorefinery: Advances in Chemical‐Catalytic Conversion of Chitin Biomass to Organonitrogen Chemicals

Base‐free Air Oxidation of Chitin‐derived Glucosamine to Glucosaminic Acid by Zinc Oxide‐supported Gold Nanoparticles

A Novel Synthesis of 2‐Amino‐2‐deoxy‐D‐gluconic Acid and Its Complexation with Cu(II) in Alkaline Medium

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