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 to obtain a catalyst-coordinated carboxylated intermediate, treating the catalyst- coordinated carboxylated intermediate with a heterogeneous base, and releasing the α,β-ethylenically unsaturated carboxylic acid salt, wherein the heterogeneous base comprises an organic basic moiety that is immobilized on a solid support. The process avoids accumulation of the conjugate acid of the base in the reaction medium.
制备α,β-
乙烯基不饱和
羧酸盐的过程包括,在羧化催化剂存在下,使烯烃和
二氧化碳反应,得到一个催化剂协同的羧化中间体;用异相碱处理催化剂协同的羧化中间体,释放α,β-
乙烯基不饱和
羧酸盐。其中,异相碱包括有机碱基固定在固体支撑上的基团。该过程避免了反应介质中碱的共轭酸的积累。