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:
Jan. 05, 1999
Filed:
Dec. 12, 1997
Applicant:
Inventors:
Vidyanatha A Prasad, Lewwood, KS (US);
Jacqueline M Applegate, Pittsburgh, PA (US);
Klaus Jelich, Pittsburgh, PA (US);
Achim Noack, Pittsburgh, PA (US);
Assignees:
Bayer Corporation, Pittsburgh, PA (US);
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548136 ;
Abstract
The present invention provides a process for making thiadiazole sulfones. The present process is used to make 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole. 2-(Methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole is made using catalytic oxidation in the presence of a suitable oxidizing agent. The catalyst used for the oxidation reaction is glacial acetic acid.