申请人:NUTRICHEM COMPANY LIMITED
公开号:US20160137611A1
公开(公告)日:2016-05-19
The present invention relates to a method for preparing an acrylate compound. The acrylate compound has a structure as shown in formula (I). The method includes: subjecting a compound with a structure of formula (II) or a mixture of compounds with structures of formula (I) and formula (II), and a catalyst to a contact reaction in the absence of an anhydride, and removing the resulting methanol by pressure reduced distillation during the contact reaction process. In the formulas (I) and (II), R is selected from one of: an alkoxy with a carbon number of 1-5, a substituent-containing phenoxyl with a carbon number of 6-20, a substituent-containing heteroaryloxy with a carbon number of 4-20, a substituent-containing heteroaryloxymethyl with a carbon number of 4-20, a substituent-containing phenoxymethyl with a carbon number of 5-20, and a substituent-containing alkyl with a carbon number of 2-20. According to the method for preparing an acrylate compound provided in the invention, the conversion rate and selectivity of the reaction can be substantially improved.
本发明涉及一种制备丙烯酸酯化合物的方法。丙烯酸酯化合物的结构如公式(I)所示。该方法包括:将具有公式(II)结构的化合物或具有公式(I)和公式(II)结构的化合物混合物以及催化剂在无酐的情况下进行接触反应,并在接触反应过程中通过减压蒸馏去除产生的甲醇。在公式(I)和(II)中,R从以下之一选取:碳数为1-5的烷氧基,碳数为6-20的含取代基的苯氧基,碳数为4-20的含取代基的杂环氧基,碳数为4-20的含取代基的杂环氧甲基,碳数为5-20的含取代基的苯氧基甲基,碳数为2-20的含取代基的烷基。根据本发明提供的制备丙烯酸酯化合物的方法,反应的转化率和选择性可以得到显著提高。