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:
Feb. 15, 2005
Filed:
Apr. 08, 2003
Applicants:
Hermann Schneider, Basel, CH;
Christoph Lüthy, Basel, CH;
Andrew Edmunds, Basel, CH;
Inventors:
Assignee:
Syngenta Crop Protection, Inc., Greensboro, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D313/16 ; C07C207/00 ; C07C049/613 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the preparation of compounds of formula I:wherein the substituents are as defined in claimby conversion of a compound of formula II:reaction of that compound with a compound of formula IV:X—C(O)—Q  (IV),wherein X is a leaving group, to form a compound of formula V:and treatment of that compound in the presence of a base with catalytic amounts of cyanide ions.