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:
Sep. 28, 1999
Filed:
May. 14, 1998
Christian T Goralski, Midland, MI (US);
Sandra K Stolz-Dunn, Midland, MI (US);
James E Hitt, Midland, MI (US);
David H Louks, Saginaw, MI (US);
Brian D Scherzer, Saginaw, MI (US);
Mark A Nitz, Sanford, MI (US);
Hoechst Marion Roussel, Inc., Bridgewater, NJ (US);
Abstract
The present invention relates to a process for preparing a compound of formula (I): ##STR1## wherein R is C.sub.1 -C.sub.10 alkyl, phenyl or substituted phenyl, comprising treating a compound of formula (II): ##STR2## with bis(tributyltin) oxide in an organic solvent selected from the group consisting of o-xylene, m-xylene, p-xylene and mixed xylenes; and subsequently treating the reaction mixture with a compound of formula (III): ##STR3## wherein X is halogen and R is defined as above.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile