METHOD FOR PRODUCING CARBOXYLATE COMPOUND AND METHOD FOR PRODUCING AMIDATE COMPOUND
申请人:KOEI CHEMICAL COMPANY, LIMITED
公开号:US20230095854A1
公开(公告)日:2023-03-30
This invention provide a method for producing a carboxylate compound represented by the following formula (3a), the method comprising reacting an imidazolium carboxylic acid salt represented by the following formula (1) and a carbonic acid ester represented by the following formula (2): formulas (1), (2), and (3a):
wherein R
1
to R
7
are as defined in the specification.
Process for preparing high-reactivity isobutene homo- or copolymers
申请人:BASF SE
公开号:US10975175B2
公开(公告)日:2021-04-13
The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 70 mol %. The present invention further relates to novel isobutene polymers.