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:
Oct. 26, 1999
Filed:
Jan. 15, 1998
Applicant:
Inventors:
Tim J Adaway, Midland, MI (US);
Jeff T Budd, Mount Pleasant, SC (US);
Ian R King, Schwenheim, FR;
Karl L Krumel, Midland, MI (US);
Larry D Kershner, Midland, MI (US);
Julie L Maurer, Midland, MI (US);
Thomas A Olmstead, San Diego, CA (US);
Gary A Roth, Midland, MI (US);
Jimmy J Tai, Midland, MI (US);
Mark A Hadd, Peabody, MA (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546153 ;
Abstract
The present invention relates to a new improved, simplified process for the preparation of halo-4-phenoxyquinolines, whereby thionyl chloride is used as the chlorinating agent to prepare the corresponding chloroquinoline intermediate prior to the final coupling reaction, and a single, inert high boiling polyether solvent is used throughout the entire reaction procedure.