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. 23, 2021
Filed:
Dec. 04, 2018
Applicant:
Syngenta Participations Ag, Basel, CH;
Inventors:
James Alan Morris, Bracknell, GB;
Alexandr Shafir, El Vendrell, ES;
Mallikharjuna Gonu, Ilhas Goa, IN;
Iffat Bilal, Ilhas Goa, IN;
David Alexander Sale, Bracknell, GB;
Assignee:
Syngenta Participations AG, Basel, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 498/04 (2006.01); B01J 31/24 (2006.01); B01J 31/28 (2006.01);
U.S. Cl.
CPC ...
C07D 498/04 (2013.01); B01J 31/24 (2013.01); B01J 31/28 (2013.01);
Abstract
The present invention relates to a novel process for the synthesis of herbicidal pyrazolidinedione compounds. In particular, a process for the preparation of a compound of formula (I), wherein R, Rand Rare as defined herein. The present invention further relates to novel intermediate compounds utilized in said process, and methods for preparing said intermediate compounds.