Patent ID: 7301034

Claim:
A process for preparing 4-thioalkylbromobenzene derivatives of the formula I where: R 1 is C 1 -C 6 -alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkoxy, C 1 -C 6 haloalkoxy, C 3 -C 8 -cycloalkyl, halogen, R 2 is isoxazole, isoxazoline or isoxazolidine, R 3 is C 1 -C 6 alkyl; which comprises reacting a compound of the formula II, in which R 1 and R 2 are as defined above, with a dialkyl disulfide of the formula III R 3 —S—S—R 3 III in the presence of a nitrite and a catalyst in a suitable solvent, and wherein, the catalyst and the compound of formula II are employed in a molar ratio of from 0.005:1 to 0.05:1.