申请人:BASF SE
公开号:US10011551B2
公开(公告)日:2018-07-03
Catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt, comprising reacting an alkene and carbon dioxide in the presence of a carboxylation catalyst and releasing the α,β-ethylenically unsaturated carboxylic acid salt with a base, the carboxylation catalyst being a transition metal complex, which comprises a structurally constrained bidentate P,X ligand, wherein X is selected from the group consisting of P, N, O, and carbene, the P and X atom are separated by 2 to 4 bridging atoms, and wherein the bridging atoms are part of at least one 5- to 7-membered cyclic substructure. A further catalytic processes for preparing α,βethylenically unsaturated carboxylic acid derivatives from CO2 and an alkene is provided.
制备α,β-乙烯基不饱和羧酸盐的催化工艺,包括在羧化催化剂存在下使烯和二氧化碳反应,并用碱释放α,β-乙烯基不饱和羧酸盐,羧化催化剂为过渡金属配合物、其中 X 选自 P、N、O 和碳烯组成的组,P 原子和 X 原子之间有 2 至 4 个桥原子隔开,且桥原子是至少一个 5 至 7 元环亚结构的一部分。本发明还提供了一种从二氧化碳和烯烃制备α,β乙烯基不饱和羧酸衍生物的催化工艺。