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:
Jun. 08, 1993
Filed:
Nov. 29, 1991
Applicant:
Inventors:
Carlo Neri, Milan, IT;
Silvestro Costanzi, Milan, IT;
Rosa M Riva, Como, IT;
Mariangela Angaroni, Varese, IT;
Assignee:
Enichem Synthesis S.p.A., Palermo, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
544106 ; 546113 ; 546184 ; 546186 ; 546242 ; 548490 ; 548537 ; 548570 ; 548542 ; 548579 ;
Abstract
Procedure for the preparation of nitroxyl radicals of sterically hindered amines, consisting of the reaction of amines with hydrogen peroxide in the presence of a titanium containing catalyst, particularly in the presence of titanium silicalites. The catalyst can be recovered at the end of the reaction and recycled.