US 20080194886Al  c19)  United States  c12)  Patent Application Publication  Schanen et al.  c10) Pub. No.: US 2008/0194886 Al  (43) Pub. Date:  Aug. 14, 2008  (54)  CATALYSTS FOR NUCLEOPHILIC  SUBSTITUTION, SYNTHESIS THEREOF,  COMPOSITION CONTAINING THEM AND  USE THEREOF  (75)  Inventors:  Vincent Schanen,  Lyon (FR);  Henri-Jean Cristau,  Sait-Aunes  (FR);  Marc Taillefer,  Vailhauques  (FR)  (51)  Int. Cl.  C07C 205/06  C07C 25113  (2006.01)  (2006.01)  (73)  Assignee:  RHODIA CHIMIE,  AUBERVILLIERS (FR)  (21)  Appl. No.:  12/103,543  (22)  Filed:  Apr. 15, 2008  (52)  U.S. Cl.  ..........................  568/938;  570/147; 568/937  (60)  Continuation of application No. 11/784,472, filed on  Apr. 6, 2007, now abandoned, which is a division of  applicationNo.10/472,912, filedonMar.1, 2004, now  Related U.S. Application Data  (57)  ABSTRACT  (30)  Foreign Application Priority Data  Publication Classification  Correspondence Address:  BUCHANAN, INGERSOLL  &  ROONEY PC  POST OFFICE BOX 1404  ALEXANDRIA, VA 22313-1404 (US)  Pat. No. 7,217,842, filed as application No. PCT/  FR02/01286 on Apr. 12, 2002.  Apr. 12, 2001  Apr. 10, 2002  (FR) ...................................... 01/05034  (FR) ...................................... 02/04522  The invention concerns novel catalysts for aromatic nucleo› philic substitution. Said catalysts are compounds of the gen› eral formula  (I), wherein: Ri, R$_{2}$ ,  R$_{3}$ ,  R$_{4}$ ,  R$_{5}$ ,  and R$_{6}$ ,  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. 