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:
Apr. 27, 2010
Filed:
Dec. 21, 2007
Applicant:
Gary David Annis, Landenberg, PA (US);
Inventor:
Gary David Annis, Landenberg, PA (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 231/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates to a method for preparing a 3-halo-4,5-dihydro-1H-pyrazole compound of Formula I comprising contacting with HXa different 4,5-dihydro-1H-pyrazole compound of Formula II wherein Xis halogen and L, R, k and Xare as defined in the disclosure. This invention also discloses preparation of compounds of Formula III wherein X, R, R, R, R, Rand n are as defined in the disclosure.