Catalytic isomerization of galactose into tagatose in the presence of bases and Lewis acids

被引：37

作者：

Drabo, Peter ^{[1
]}

Delidovich, Irina ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Tech & Makromol Chem, Chair Heterogeneous Catalysis & Chem Technol, Aachen, Germany

来源：

CATALYSIS COMMUNICATIONS | 2018年 / 107卷

关键词：

Tagatose; Galactose; Isomerization; Hydrotalcite; Zeolite; GLUCOSE ISOMERIZATION; KETOSE INTERCONVERSION; MONOSACCHARIDES; FRUCTOSE; ZEOLITE; SUGARS; PYRIDINE; ALDOSE;

D O I：

10.1016/j.catcom.2018.01.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Catalytic efficiency of bases and a Lewis acid for isomerization of galactose into tagatose was comparatively studied. NaH2PO4 + Na2HPO4 phosphates and Mg-Al hydrotalcite were tested as soluble and solid base catalysts. Selectivity towards tagatose over these base catalysts decreases along with galactose conversion owing to formation of sorbose as a side product. In the presence of the bases, yield of tagatose was limited to 16% obtained at 51% galactose conversion. Sn-BEA zeolite presents a solid Lewis acid. This catalyst enables a selective transformation of galactose giving rise to tagatose in 24% yield at 29% conversion of the substrate.

引用

页码：24 / 28

页数：5

共 37 条

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