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 (CO
2
), 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.
本发明公开了一种连续生产α,β-不饱和
羧酸或其盐的过程,包括:1)在第一阶段,将(a)至少包含一个第一
配体的过渡
金属前体化合物,(b)可选地,至少一个第二
配体,(c)烯烃,(d)
二氧化碳(
CO2)和(e)稀释剂接触以形成第一组成物;2)在第二阶段,将多阴离子固体与第一组成物接触以形成第二组成物;3)在第三阶段,(a)将第二组成物与极性溶剂接触以释放α,β-不饱和
羧酸的
金属盐并形成反应固体。还描述了再生多阴离子固体的方法。