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:
Nov. 22, 2016
Filed:
Jan. 07, 2011
Christian Maliverney, Saint Julien sur Bibost, FR;
Laurent Saint-jalmes, Vourles, FR;
Sophie Gojon, Rueil-Malmaison, FR;
Tsuyoshi Kato, Toulouse, FR;
Antoine J. Baceiredo, Toulouse, FR;
Christian Maliverney, Saint Julien sur Bibost, FR;
Laurent Saint-Jalmes, Vourles, FR;
Sophie Gojon, Rueil-Malmaison, FR;
Tsuyoshi Kato, Toulouse, FR;
Antoine J. Baceiredo, Toulouse, FR;
Bluestar Silicones France SAS, Lyons, FR;
C.N.R.S., Paris, FR;
Abstract
The invention relates to a method for preparing carbene by means of deprotonation of a precursor salt using a strong base. A purpose of the invention is to enhance the synthesis of carbenes, i.e. to simplify same, to make said synthesis more economical and to obtain a liquid or solid, stable and pure form constituting a catalytic system that is easy to store and use and that has a higher efficiency, higher yield and higher selectivity than carbene catalysts of the prior art. In order to do so, the method comprises deprotonation in a solvent including an alcohol. The invention also relates to an alcohol-containing solution and carbene, and to a solid that can be obtained from the solution, e.g. by means of sublimation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile