申请人:MARUZEN PETROCHEMICAL CO., LTD.
公开号:US20160108071A1
公开(公告)日:2016-04-21
The present invention provides a method for easily and inexpensively producing a heterogeneous catalyst used to synthesize a cyclic carbonate by reacting an epoxide with carbon dioxide and having excellent catalyst activity; a catalyst obtained using said manufacturing method; and a method for synthesizing a cyclic carbonate using said catalyst.
A method for producing a catalyst that is used for the purpose of synthesizing a cyclic carbonate by subjecting to a reaction an epoxide with carbon dioxide, said method comprising the following steps (a) and (b):
(a) a step of obtaining a catalyst precursor having a haloalkyl group or a haloaryl group by reacting a silane compound with a silica gel in the presence of xylene, the silane compound having a haloalkyl group or a haloaryl group and
(b) a step of obtaining a catalyst for synthesizing a cyclic carbonate by reacting the catalyst precursor obtained in step (a) with a tertiary phosphine.
本发明提供了一种用于通过将环氧化合物与二氧化碳反应来合成环状碳酸酯的异质催化剂的简便且廉价的生产方法;采用所述制备方法获得的催化剂;以及使用该催化剂合成环状碳酸酯的方法。用于生产一种用于合成环状碳酸酯的催化剂的方法,通过将环氧化合物与二氧化碳反应,该方法包括以下步骤(a)和(b):(a)通过在二甲苯存在下将硅烷化合物与二氧化硅反应以获得具有卤代烷基或卤代芳基的催化剂前驱体的步骤,其中所述硅烷化合物具有卤代烷基或卤代芳基;以及(b)通过将步骤(a)中获得的催化剂前驱体与三膦反应以获得用于合成环状碳酸酯的催化剂的步骤。