| 主权项 |
1. A process for preparing a substituted triazole of formula (IIa) wherein
Z represents a furanyl, phenyl, pyridazinyl, pyridyl, pyrimidinyl or thienyl group, unsubstituted or substituted with one or more substituents independently selected from F, Cl, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 haloalkoxy or C1-C6 haloalkylthio,which comprises contacting 3-bromo-1H-1,2,4-triazolewith a brominated or iodinated furanyl, phenyl, pyridazinyl, pyridyl, pyrimidinyl or thienyl compound, unsubstituted or substituted with one or more substituents independently selected from F, Cl, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 haloalkoxy or C1-C6 haloalkylthio of one of the following formulas wherein
L represents Br or I,X independently represents F, Cl, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 haloalkoxy or C1-C6 haloalkylthio,m=0, 1, 2 or 3,n=0, 1, 2, 3 or 4, andp=0, 1, 2, 3, 4 or 5,in a polar aprotic solvent in the presence of a catalytic amount of copper catalyst and at least one equivalent of an inorganic base at a temperature from ambient to about 120° C. |
