申请人:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
公开号:US20160145234A1
公开(公告)日:2016-05-26
Provided is a method for producing a cyclic carbonate obtained by reacting epoxide and carbon dioxide, the method being capable of efficiently producing a cyclic carbonate at a high conversion rate and a high yield, in which degradation of the catalyst over time is suppressed and catalytic activity hardly decreases.
A method for producing a cyclic carbonate by reacting epoxide and carbon dioxide in the presence of a quaternary onium salt selected from the group consisting of a quaternary ammonium salt having a halogenated anion as a counter ion and a quaternary phosphonium salt having a halogenated anion as a counter ion, or in the presence of a solid catalyst obtained by immobilizing the quaternary onium salt onto a carrier, wherein an organohalogen compound containing at least one halogen atom in one molecule is added to the reaction system.
提供了一种生产环状碳酸酯的方法,该方法通过反应环氧化物和二氧化碳获得,能够高效地以高转化率和高产率生产环状碳酸酯,同时抑制催化剂随时间降解并且催化活性几乎不会下降。在存在从属于具有卤素阴离子作为对离子的季铵盐和具有卤素阴离子作为对离子的季膦盐中选择的季铵盐,或者存在通过将季铵盐固定在载体上而获得的固体催化剂的情况下,通过在反应体系中添加含有至少一个卤素原子的有机卤素化合物来生产环状碳酸酯的方法。