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. 08, 2015
Filed:
Nov. 15, 2012
Applicant:
Lonza Ltd, Visp, CH;
Inventors:
Florencio Zaragoza Doerwald, Visp, CH;
Anna Kulesza, Ausserberg, CH;
Stephan Elzner, Brig-Glis, CH;
Robert Bujok, Warsaw, PL;
Zbigniew Wrobel, Warsaw, PL;
Krzysztof Wojciechowski, Warsaw, PL;
Assignee:
Lonza Ltd., Visp, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/42 (2006.01); C07C 45/58 (2006.01); C07C 25/125 (2006.01); C07D 301/26 (2006.01);
U.S. Cl.
CPC ...
C07C 45/58 (2013.01); C07C 25/125 (2013.01); C07D 301/26 (2013.01);
Abstract
The invention discloses a method for the preparation of 2-(2,3-dimethylphenyl)-1-propanal starting from 1-bromo 2,3-dimethylbenzene and chloroacetone, its use in perfumes and its use for the preparation of medetomidine.