文章基本信息

标题：Promoted isomerization of aldoses to ketoses in subcritical aqueous acetonitrile
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作者：Da‐Ming Gao ; Da‐Ming Gao ; Takashi Kobayashi 等
期刊名称：Canadian Journal of Chemical Engineering
印刷版ISSN：0008-4034
出版年度：2017
卷号：95
期号：2
页码：359-363
DOI：10.1002/cjce.22663
语种：English
出版社：Chemical Institute of Canada
摘要：Isomerizations of d‐glucose, d‐mannose, d‐fructose, d‐galactose, d‐xylose, d‐ribose, cellobiose, maltose, lactose, and melibiose were investigated in subcritical aqueous acetonitrile. d‐Glucose and d‐mannose were preferred to be isomerized to d‐fructose, while d‐fructose mainly underwent decomposition rather than isomerization. Effects of acetonitrile concentration and temperature on saccharide isomerization were investigated using glucose as a substrate. The conversion of d‐glucose and yield of d‐fructose were improved with increasing acetonitrile concentration at 180 to 200 °C. In attempts to produce rare ketoses simply, d‐tagatose, d‐xylulose, d‐ribulose, cellobiulose, maltulose, lactulose, and melibiulose were successfully produced in high yields and selectivities by treating their corresponding aldoses with subcritical aqueous acetonitrile.
关键词：enaldose isomerizationdielectric constantrare ketosesubcritical aqueous acetonitrile