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:
Jun. 05, 2007
Filed:
Apr. 06, 2004
Applicants:
Joe J. Hanson, Holt, MO (US);
David M. Mayes, Overland Park, KS (US);
Klaus Stroech, Solingen, DE;
Shekhar V. Kulkarni, Overland Park, KS (US);
Inventors:
Joe J. Hanson, Holt, MO (US);
David M. Mayes, Overland Park, KS (US);
Klaus Stroech, Solingen, DE;
Shekhar V. Kulkarni, Overland Park, KS (US);
Assignees:
Bayer CropScience LP, Research Triangle Park, NC (US);
Bayer CropScience Aktiengesellschaft, Monheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 49/00 (2006.01); C07C 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method of preparing 1-acetyl-1-chlorocyclopropane from 1,3 dichloro-2-pentanone by reaction with base in the presence of a phase transfer catalyst. The reaction may be run in the presence or absence of an organic solvent and in a continuous or batch process.