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1. 发明公开

EP2483276A1 PROCÉDÉ DE PRÉPARATION DE DI (ALKYLCARBONATE) DE DIANHYDROHEXITOL 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG EINES DIALKYLCARBONATS AUS DIANHYDROHEXITOL
公开(公告)号：EP2483276A1
公开(公告)日：2012-08-08
申请号：EP10776772.5
申请日：2010-09-30
申请人： Roquette Freres
发明人： FUERTES, Patrick , IBERT, Mathias , JOSIEN, Emilie , TUNDO, Pietro , ARICÒ, Fabio
IPC分类号： C07D493/04
CPC分类号： C07D493/04 , Y02P20/582
摘要： The present invention relates to a method for preparing dialkyl carbonates of dianhydrohexitol, said method including the following steps: (a) preparing an initial reaction mixture containing at least one dianhydrohexitol, at least two mole equivalents of a dialkyl carbonate of formula and a transesterification catalyst; (b) heating the reaction mixture to a temperature greater than or equal to the boiling temperature of the formed alcohol, or of the azeotrope thereof, in a reaction chamber preferably provided with a rectification column comprising a sufficient number of theoretical distillation plates to separate the resulting alcohol from the reaction mixture. The invention also relates to certain dialkyl carbonates of dianhydrohexitols produced by said method and to the use thereof for synthesising synthetic polymers.
摘要翻译：一种制备二脱水己糖醇的碳酸二烷基酯的方法包括以下步骤：（a）制备含有至少两摩尔当量二烷基碳酸酯和酯交换催化剂的至少一种二脱水己糖醇的初始反应混合物; （b）在反应室内将反应混合物加热到大于或等于所形成的醇或其共沸物的沸点的温度，反应室优选设有包括足够数量的理论蒸馏塔的精馏塔，以分离从反应混合物中得到酒精。还描述了通过该方法制备的二脱水己糖醇的某些二烷基碳酸酯及其用于合成合成聚合物的用途。

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