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:
Feb. 06, 1990
Filed:
Jun. 03, 1987
Applicant:
Inventors:
Silvestro Costanzi, San Giuliano Milanese, IT;
Damiano Gussoni, Milan, IT;
Luciano Pallini, Fornovo di Taro, IT;
Assignee:
Enichem Synthesis S.p.A., Palermo, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546216 ; 546217 ; 558277 ;
Abstract
A process is described for the preparation of N-allyl-2,2,6,6-tetraalkyl-piperidine derivatives which involves reaction of the corresponding 2,2,6,6-tetraalkyl-piperidine with an allylic carbonate in the presence of palladium catalysts. The products which are thus obtained are useful as polymer stabilizers and chemical intermediates.