公开(公告)号：WO2021023569A1

公开(公告)日：2021-02-11

申请号：PCT/EP2020/071204

申请日：2020-07-28

Applicant: BASF SE

Inventor： HACKEMANN, Eva Katharina ,  RENZ, Stephanie ,  MAURER, Stephan ,  HICKMANN, Volker ,  JEGELKA, Markus ,  DANZ, Manuel

IPC: C07C68/08 ,  C07C69/96 ,  C07C68/02

Abstract: The presently claimed invention relates to a process for purification of aroma compounds by distillation. Specifically, it relates to a process for purification of carbonic esters of formula(I) using a combination of distillative processes.

公开(公告)号：WO2020030582A1

公开(公告)日：2020-02-13

申请号：PCT/EP2019/071007

申请日：2019-08-05

Applicant: BASF SE

Inventor： HICKMANN, Volker ,  SIEGEL, Wolfgang ,  JEGELKA, Markus ,  HACKEMANN, Eva Katharina ,  RENZ, Stephanie ,  DANZ, Manuel

IPC: C07D233/60 ,  C07C68/00

Abstract: The present invention relates to a process for providing carbonic acid esters of formula (I). Further, the invention relates to the intermediates of the formula (IVa).