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:
Nov. 19, 2013
Filed:
Nov. 09, 2011
Applicants:
Norbert Lui, Odenthal, DE;
Jens-dietmar Heinrich, Burscheid, DE;
Inventors:
Norbert Lui, Odenthal, DE;
Jens-Dietmar Heinrich, Burscheid, DE;
Assignee:
Bayer Cropscience AG, Monheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 213/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for the preparation of 2,2-difluoroethylamine derivatives of the formula (IV) comprising the steps (i) and (ii):step (i): reaction of N-(2,2-difluoroethyl)prop-2-en-1-amine of the formula (I) with a compound of the formula (II)A-CH-E  (II)to give a compound of the formula (III) optionally in the presence of an inorganic or organic base, and step (ii): removal of the allyl group from the compound of the formula (III), in which, in the formulae (II), (III) and (IV), A and E have the meanings given in the description.