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:
Jan. 26, 2016
Filed:
Apr. 25, 2008
Applicant:
Michael North, Newcastle Upon Tyne, GB;
Inventor:
Michael North, Newcastle Upon Tyne, GB;
Assignee:
University of York, York, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 317/12 (2006.01); C07D 317/14 (2006.01); C07F 5/06 (2006.01);
U.S. Cl.
CPC ...
C07D 317/12 (2013.01); C07F 5/069 (2013.01);
Abstract
A process for the production of cyclic carbonates comprising contacting an epoxide with carbon dioxide in the presence of a dimeric aluminum(salen) catalyst, and a co-catalyst capable of supplying Y, where Y is selected from Cl, Br and I, where the dimeric aluminum(salen) catalyst is of formula I: