公开(公告)号：US10138196B2

公开(公告)日：2018-11-27

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

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.

公开(公告)号：US10774024B2

公开(公告)日：2020-09-15

申请号：US16090731

申请日：2017-04-04

Applicant: BASF SE

Inventor： Thomas Schaub ,  Rocco Paciello ,  Nuria Huguet Subiela ,  Oliver Trapp ,  Simone Manzini

IPC: C07C51/15 ,  B01J31/12 ,  B01J31/18 ,  C07C51/44 ,  C07C57/04

Abstract: The present invention relates to a catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt, comprising contacting an alkene and carbon dioxide with a carboxylation catalyst being a transition metal complex, an alkoxide, and an organic solvent, to obtain an α,β-ethylenically unsaturated carboxylic acid salt, the organic solvent being incompletely miscible with water at a pressure of 1 bar at at least one temperature T and selected from amides and ureas, T being a temperature in the range from 10° C. to 90° C.