A catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt from an alkene, carbon dioxide and an alkoxide having a secondary or tertiary carbon atom directly bound to a [O−] group is described. The alcohol byproduct is distilled off after an intermediate phase separation. This provides pure β,β-ethylenically unsaturated carboxylic acid salt at minimum effort.
描述了一种从烯、
二氧化碳和具有直接与 [O-] 基团结合的仲碳原子或三碳原子的氧化
烷烃制备 α、β-
乙烯基不饱和
羧酸盐的催化工艺。中间相分离后,蒸馏出副产物醇。这样就能以最小的代价得到纯的β,β-
乙烯基不饱和
羧酸盐。