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:
May. 27, 2014
Filed:
Apr. 20, 2010
Applicants:
Graham Mcdougald, Bracknell, GB;
James Peter Muxworthy, Bracknell, GB;
Beverley Ann Wilde, Bracknell, GB;
Inventors:
Graham McDougald, Bracknell, GB;
James Peter Muxworthy, Bracknell, GB;
Beverley Ann Wilde, Bracknell, GB;
Assignee:
Syngenta Limited, Guildford, Surrey, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 231/14 (2006.01); C07D 409/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to improvements in processes towards the production 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid, which is a useful intermediate in fungicide production. In particular, the invention relates to a process for treating a compound of formula III, wherein Ris C-Calkyl and Ris CF, CFH or CFH, comprising the steps of a) contacting a compound of formula III with base, and b) separating the compound of formula III and the base.