content_image/931435.jpg
# c19) United States 

# c12) Patent Application Publication Roques et al. 

# (54) ESTERS OF ALLYL SUBSTITUTED BY A DIFLUOROMETHYLENE GROUP, METHOD FOR THE SYNTHESIS THEREOF AND USE THEREOF 

(75) Inventors: Nicolas Roques, Gaillac (FR); Laurent Saint James, Vourles (FR); Jean-Marie Bernard, Saint Laurent D’ Agny (FR) 

Correspondence Address: Jean-Louis Seugnet Rhodia Inc Intellectuual Property Dept 259 Prospect Plains Road CN-7500 Cranbury, NJ 08512 (US) 

(73) Assignee: RHODIA CHIMIE, 92512 BOU› LOGNE BILLANCOURT CEDEX (FR) 

(21) Appl. No.: 10/539,639 

(22) PCT Filed: Dec. 17, 2003 

<img src='content_image/931435.jpg'>

US 20060069284Al 

# c10) Pub. No.: US 2006/0069284 Al 

# (43) Pub. Date: Mar. 30, 2006 

(86) PCT No.: PCT/FR03/03780 

## (30) Foreign Application Priority Data 

Dec. 20, 2002 (FR) ............................................ 02/16308 

(51) Int. Cl. C07C 67102 (2006.01) 

(52) U.S. Cl. .............................................................. 560/262 

## (57) ABSTRACT 

The subject matter of the present invention is compounds forming an ally! ester in which the ally! group is substituted by a difluoromethylene group; another subject matter of the invention is a route for the synthesis of these compounds and their use in cycloaddition processes for the synthesis of nitrogenous heterocycles, in particular 3+2 cycloadditions. 

## Publication Classification 

