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. 15, 2008
Filed:
Oct. 06, 2005
Applicants:
Stefano Turchetta, Patrica Fr, IT;
Umberto Ciambecchini, Patrica Fr, IT;
Pietro Massardo, Rome, IT;
Inventors:
Assignee:
Chemi SPA, Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/22 (2006.01); C07C 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process is described for the preparation of N,N-diisopropyl-3-(2-hydroxy-5-methylphenyl)-3-phenyl-propaneamine comprising substitution of the sulfonyloxy group of the compound of the formula in which the substituents R and R″ have the meanings stated in the description,in a solvent comprising an ionic liquid,to yield the tertiary amine of the formula and the subsequent deprotection thereof.