申请人:Bayer MaterialScience AG
公开号:US20150203467A1
公开(公告)日:2015-07-23
The present invention relates to a method for producing linear and/or cyclic carbonate esters, involving the step of reacting an epoxide with carbon dioxide in the presence of a catalyser. The invention further relates to the use of special catalysers for reacting epoxides with carbon dioxide, special catalysers and special reaction products. The catalyser comprises a complex of a metal M or M-A with a ligand L, the metal M being present in an oxidation state of >=0, A standing for halide, carboxylate, phenolate, sulfonate, phosphonate, alkyl, alkoxy or amido, and the ligand L having the subsequent structure (Ia) or (Ib), wherein one or both of the OH groups shown in (Ia) and/or (Ib) can also be deprotonated.
本发明涉及一种生产线性和/或环状碳酸酯的方法,包括在催化剂存在下将环氧化物与二氧化碳反应的步骤。该发明还涉及使用特殊催化剂来使环氧化物与二氧化碳反应,特殊催化剂和特殊反应产物。该催化剂包括金属M或M-A与配体L的复合物,金属M以>=0的氧化态存在,A代表卤素、羧酸盐、酚酚盐、磺酸盐、膦酸盐、烷基、烷氧基或氨基,配体L具有下述结构(Ia)或(Ib),其中(Ia)和/或(Ib)中显示的一个或两个OH基团也可以被去质子化。