Disclosed is a continuous process for producing α,β-unsaturated carboxylic acids or salts thereof, comprising: 1) in a first stage, contacting (a) a transition metal precursor compound comprising at least one first ligand, (b) optionally, at least one second ligand, (c) an olefin, (d) carbon dioxide (CO2), and (e) a diluent to form a first composition; 2) in a second stage, contacting a polyanionic solid with the first composition to form a second composition; and 3) in a third stage, (a) contacting the second composition with a polar solvent to release a metal salt of an α,β-unsaturated carboxylic acid and form a reacted solid. Methods of regenerating the polyanionic solid are described.
本发明公开了一种生产α,β-不饱和
羧酸或其盐的连续工艺,包括1) 在第一阶段,将(a)包含至少一种第一
配体的过渡
金属前体化合物、(b)可选的至少一种第二
配体、(c)烯烃、(d)
二氧化碳(
CO2)和(e)稀释剂接触,形成第一组合物;2) 在第二阶段,将聚阴离子固体与第一种组合物接触,形成第二种组合物;以及 3) 在第三阶段,(a) 将第二种组合物与极性溶剂接触,释放出 α,β-不饱和
羧酸的
金属盐,形成反应固体。描述了再生聚阴离子固体的方法。