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:
Mar. 10, 2015
Filed:
Jul. 16, 2012
Applicants:
Thomas Norbert Müller, Monheim, DE;
Norbert Lui, Odenthal, DE;
Stefan Moczarski, Köln, DE;
Inventors:
Assignee:
Bayer Intellectual Property GmbH, Monheim am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/147 (2006.01); C07C 67/11 (2006.01); C07C 29/128 (2006.01); C07C 67/10 (2006.01); C07C 31/38 (2006.01);
U.S. Cl.
CPC ...
C07C 29/147 (2013.01); C07C 67/11 (2013.01); C07C 29/1285 (2013.01); C07C 67/10 (2013.01); C07C 31/38 (2013.01);
Abstract
Process for preparing 2,2-difluoroethanol, comprising the following steps: reacting 1-chloro-2,2-difluoroethane with an alkali metal salt of formic acid or acetic acid in a suitable solvent to give the corresponding 2,2-difluoroethyl formate or 2,2-difluoroethyl acetate, and transesterifying the 2,2-difluoroethyl formate or 2,2-difluoroethyl acetate from step (i) in the presence of an alcohol and optionally of a base.