发明名称 METHOD FOR PREPARING 5-HYDROXY-1,3-DIOXANE AND METHOD FOR PREPARING BRANCHED GLYCEROL TRIMERS USING 5-HYDROXY-1,3-DIOXANE AS A RAW MATERIAL
摘要 <p>The present invention relates to a method for preparing 5-hydroxy-1,3-dioxane (alpha, alpha'-isomer of glycerol formal) which is very suitable as a raw material for branched glycerol, and more particularly, to a method for preparing 5-hydroxy-1,3-dioxane, comprising the steps of: using, as a starting material, a mixture of 5-hydroxy-1,3-dioxane and 4-hydroxymethyl-1,3-dioxolane, preferably adding glycerol, and then heating the mixture at 40-100°C in the presence of a concentrated sulfuric acid as an acid catalyst to obtain a mixture in which the proportion of 5-hydroxy-1,3-dioxane is higher than that in the starting material; and allowing pivaloyl chloride and trityl chloride to react with the mixture having the increased proportion of 5-hydroxy-1,3-dioxane, thereby performing separation and purification of unreacted 5-hydroxy-1,3-dioxane through distillation or extraction.</p>
申请公布号 WO2013035899(A1) 申请公布日期 2013.03.14
申请号 WO2011KR06631 申请日期 2011.09.07
申请人 KOREA TECHNO AGENCY CO., LTD.;THE UNIVERSITY OF TOKUSHIMA;NEMOTO, HISAO;HATTORI, HATSUHIKO 发明人 NEMOTO, HISAO;HATTORI, HATSUHIKO
分类号 C07D319/06;C07B63/00 主分类号 C07D319/06
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