公开(公告)号：US20210340090A1

公开(公告)日：2021-11-04

申请号：US17271419

申请日：2019-08-19

Applicant: BASF SE

Inventor： Frank BIENEWALD ,  Martin Voelkert ,  Rolf Pinkos

IPC: C07C41/08 ,  C07C41/44

Abstract: A process produces a mono vinyl ether, R—O—CH═CH2. R represents an organic group with at least three carbon atoms. The process involves reacting a mono hydroxy compound. R—OH, with acetylene in presence of a catalyst to get a product mixture containing the mono vinyl ether, unconverted mono hydroxy compound, and the catalyst. To the product mixture, an ester is added that contains at least one ester group, X—O2C—. X is a hydrocarbon group containing less carbon atoms than R. The remaining mono hydroxy compound R—OH is reacted with the ester in the presence of the catalyst to get a transesterification product containing at least one ester group, R—O2C—, and an alcohol, X—OH. The mono vinyl ether is isolated from the product mixture obtained after the ester addition, optionally followed by purification of the mono vinyl ether by distillation.