Processes to produce certain 2-(pyridine-3-yl)thiazoles

Abstract

The invention disclosed in this document is related to the field of processes to produce certain 2-(pyridine-3-yl)thiazoles as intermediates for the synthesis of pesticidal thiazole amides.

What is claimed is: 
     
         1 . A compound having the following structure 
       
         
           
           
               
               
           
         
       
       wherein
 (A) each R 1  is independently selected from H, F, Cl, Br, I, CN, NO 2 , and substituted or unsubstituted (C 1 -C 6 )alkyl, wherein each substituted R 1  has one or more substituents independently selected from F, Cl, Br, I, CN, NO 2 , (C 1 -C 6 )alkyl, and (C 1 -C 6 )haloalkyl; 
 (C) R 3  is selected from H, substituted or unsubstituted (C 1 -C 6 )alkyl, substituted or unsubstituted (C 3 -C 10 )cycloalkyl, substituted or unsubstituted (C 1 -C 6 )alkyl(C 3 -C 10 )cycloalkyl, substituted or unsubstituted (C 6 -C 20 )aryl, and substituted or unsubstituted (C 1 -C 6 )alkyl(C 6 -C 20 )aryl, wherein each substituted R 3  has one or more substituents independently selected from F, Cl, Br, and I; and 
 (D) R 4  is selected from H, substituted or unsubstituted (C 1 -C 6 )alkyl, substituted or unsubstituted (C 3 -C 10 )cycloalkyl, substituted or unsubstituted (C 1 -C 6 )alkyl(C 3 -C 1 o)cycloalkyl, substituted or unsubstituted (C 6 -C 20 )aryl, substituted or unsubstituted (C 1 -C 6 )alkyl(C 6 -C 20 )aryl, substituted or unsubstituted (C 1 -C 6 )alkyl(C 2 -C 6 )alkenyl, and substituted or unsubstituted (C 1 -C 6 )alkyl(C 2 -C 6 )alkynyl, wherein each said R 4 , which is substituted, has one or more substituents selected from F, Cl, Br, I, CN, NO 2 , (C 1 -C 6 )alkyl, (C 1 -C 6 )haloalkyl, (C 1 -C 6 )alkyloxy, (C 1 -C 6 )haloalkyloxy, (C 3 -C 10 )cycloalkyl, (C 3 -C 10 )halocycloalkyl, (C 6 -C 20 )aryl, and (C 1 -C 20 )heterocyclyl.