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. 01, 2003
Filed:
Apr. 02, 2002
Applicant:
Inventor:
Chien-Tien Chen, Taipei, TW;
Assignee:
National Taiwan Normal University, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 6/902 ; B01J 2/100 ;
U.S. Cl.
CPC ...
C07C 6/902 ; B01J 2/100 ;
Abstract
A process for acyl substitution of an anhydride with an active-hydrogen-containing compound includes reacting the anhydride with the active-hydrogen-containing compound in the presence of a vanadyl salt catalyst to obtain a high yield of acyl substitution reaction product with high chemoselectivity.