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. 14, 1998
Filed:
Dec. 05, 1995
Applicant:
Inventors:
Roland Herwig Beck, Everberg, BE;
Myriam Elseviers, Kampenhout, BE;
Hilde Odile Lemmens, Kontich, BE;
Assignee:
Cerestar Holding B.V., Sas Van Gent, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07H / ;
U.S. Cl.
CPC ...
536 185 ; 536-111 ; 536124 ; 568863 ;
Abstract
The present invention discloses a method for direct decarbonylation of sugars. The method is based on the conversion of the sugars in the presence of a phosphine metal complex. These complexes are added in catalytic amounts if at the same time urea or an azide such as DPPA (diphenylphosphorylazide) or sodium azide is added. Through the use of other ligands the decarbonylation reaction can also be performed in water.