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Solid-Phase Synthesis of Polysaccharides from Unprotected Glucose Catalyzed by Hβ Zeolites by Dawei Dong; Yafei Xiao; Minghua Zhang; Peixin Gong; Yingqing Ye; Shuhua Peng; Ke Wang; Minmin Fan is a Engineering article available to read on EtoBox.

What is Solid-Phase Synthesis of Polysaccharides from Unprotected Glucose Catalyzed by Hβ Zeolites about?

Polysaccharide is a kind of biological macromolecule with a complex structure, which plays an irreplaceable role in the organism. Due to the complex purification process of natural polysaccharide, chemical synthesis is an important means to obtain it. In this work, a green and efficient solid-phase polymerization method was used to synthesize glucan polysaccharide from unprotected glucose in one step under mild solid-phase conditions, using Hβ zeolites as acidic catalyst. The final polysaccharide product was characterized by high-performance liquid chromatography (HPLC) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) with a conversion of 35.0% and a maximum degree of polymerization of 26. More importantly, it was speculated that the glycosylation of unprotected glucose catalyzed by Hβ zeolites conforms to the Fischer glycosylation mechanism. In addition, the results of methylation analysis and one-dimensional, twodimensional nuclear magnetic resonance (1D, 2D NMR) showed that the resulting polysaccharides were mainly linear, containing 10 different glycosidic linkages, and (1,6-Glcp), (1-Glcp), and (1,4-Glcp) were the most abundant li

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Author

Dawei Dong; Yafei Xiao; Minghua Zhang; Peixin Gong; Yingqing Ye; Shuhua Peng; Ke Wang; Minmin Fan

Publisher

American Chemical Society (ACS)

Published

2022

Language

EN

Field

Engineering (Physical Sciences)