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:
May. 15, 2007
Filed:
Apr. 12, 2002
Applicants:
Vincent Schanen, Lyons, FR;
Henri-jean Cristau, Saint-Aunes, FR;
Marc Taillefer, Vailhauques, FR;
Inventors:
Assignee:
Rhodia-Chimie, Aubervilliers, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 9/02 (2006.01); B01J 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns novel catalysts for aromatic nucleophilic substitution. Said catalysts are compounds of the general formula (I), wherein: R, R, R, R, R, and R, identical or different, are selected among hydrocarbon radicals; the Pn's, advantageously the same, are selected among metalloid elements of column V of a period higher than nitrogen; Z is a metalloid element of column V, advantageously distinct from Pn; preferably a nitrogen (N, P, As, Sb). The invention is applicable to organic synthesis