申请人:BASF SE
公开号:US10138196B2
公开(公告)日:2018-11-27
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。