The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2022
Filed:
Aug. 14, 2018
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Bilguun Bayarmagnai, Heidelberg, DE;
Thomas Schaub, Ludwigshafen, DE;
Verena Mormul, Ludwigshafen, DE;
Peter Rudolf, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 317/40 (2006.01); B01J 31/22 (2006.01); C08F 124/00 (2006.01); H01M 10/0567 (2010.01);
U.S. Cl.
CPC ...
C07D 317/40 (2013.01); B01J 31/2282 (2013.01); C08F 124/00 (2013.01); H01M 10/0567 (2013.01); H01M 2300/0025 (2013.01);
Abstract
The present invention relates to a process for preparing cyclic carbonates of formula Ia or Ib or mixtures thereof (Ia) (Ib) comprising the process step: a) reacting a propargylic alcohol of formula II (II) with carbon dioxide in the presence of at least one transition metal catalyst TMC1, which comprises a transition metal selected from metals of groups 10, 11 and 12 of the periodic table of the elements according to IUPAC and at least one bulky ligand.