公开(公告)号：US20180134646A1

公开(公告)日：2018-05-17

申请号：US15573276

申请日：2016-05-09

Applicant: BASF SE

Inventor： Thomas SCHAUB ,  Nuria HUGUET SUBIELA ,  Rocco PACIELLO ,  Donata Maria FRIES ,  Simone MANZINI

IPC: C07C51/15 ,  C07C51/48 ,  B01J31/24

CPC classification number: C07C51/15 ,  B01J31/24 ,  C07C51/48 ,  C07C57/04

Abstract: 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.