公开(公告)号：US20230094796A1

公开(公告)日：2023-03-30

申请号：US17758683

申请日：2021-01-05

Applicant: BASF SE

Inventor： Thomas SCHAUB ,  Peter Rudolf ,  Ulrike Licht ,  A. Stephen K. Hashmi ,  Saumya Dabral ,  Chloe Johnson

IPC: C07D317/40 ,  B01J31/04 ,  B01J31/18 ,  B01J31/24

Abstract: A process can be used for preparing cyclic carbonates with an exocyclic vinylidene group by reacting a propargylic alcohol with CO2 in the presence of a silver catalyst having at least one bulky ligand a lipophilic carboxylate ligand. After completion of the reaction, the catalyst is separated from the cyclic carbonate by the use of two organic solvents of different polarity and having a miscibility gap. The silver catalyst is enriched in the less polar solvent and the cyclic carbonate in the more polar solvent.

公开(公告)号：US11613524B2

公开(公告)日：2023-03-28

申请号：US16951207

申请日：2020-11-18

Applicant: BASF SE

Inventor： Thomas Schaub ,  Peter Rudolf ,  Ulrike Licht ,  Verena Mormul ,  Saumya Dabral

IPC: C07D317/36 ,  C08F136/20 ,  C09J4/00

Abstract: A compound of formula (I) wherein R1 is hydrogen or an organic radical of 1 to 100 carbon atoms, R2, R3 are independently hydrogen or an organic radical of 1 to 100 carbons, Z is a single bond or a divalent organic group of 1 to 100 carbons, A is an (n+m)-valent organic group of 1 to 1 000 000 carbons, X is a single bond or a divalent organic group of 1 to 40 carbons, n is an integer from 1 to 1000, m is 0, 1, or 2, the sum of n+m being an integer from 2 to 1002. Such compounds are obtainable from specific 4-oxy-but-2-yn-1-ol derivatives, or used as intermediate(s), crosslinker(s), or monomer(s) in polymerization or oligomerization reactions, or for two-component compositions having such compound(s) and multifunctional hardener(s). Such compound(s) may be used to prepare polyunsaturated compounds, by reaction with an (oligo/poly)-functional nucleophile, or polymers.