| 摘要 |
A process for preparing 4-thioalkylbromobenzene derivatives of the formula I where: R<SUP>1 </SUP>is C<SUB>1</SUB>-C<SUB>6</SUB>-alkyl, C<SUB>1</SUB>-C<SUB>6</SUB>-haloalkyl, C<SUB>1</SUB>-C<SUB>6</SUB>-alkoxy, C<SUB>1</SUB>-C<SUB>6</SUB>-haloalkoxy, C<SUB>3</SUB>-C<SUB>8</SUB>-cycloalkyl, halogen, R<SUP>2 </SUP>is C<SUB>1</SUB>-C<SUB>6</SUB>-alkyl, C<SUB>1</SUB>-C<SUB>6</SUB>-alkoxy, C<SUB>3</SUB>-C<SUB>8</SUB>-cycloalkyl, C<SUB>2</SUB>-C<SUB>6</SUB>-alkenyl, cyano or a heterocyclic radical, R<SUP>3 </SUP>is C<SUB>1</SUB>-C<SUB>6</SUB>-alkyl, which comprises reacting a compound of the formula II, in which R<SUP>1 </SUP>and R<SUP>2 </SUP>are as defined above, with a dialkyl disulfide of the formula III <?in-line-formulae description="In-line Formulae" end="lead"?>R<SUP>3</SUP>-S-S-R<SUP>3</SUP>III<?in-line-formulae description="In-line Formulae" end="tail"?> in the presence of a nitrite and a catalyst in a suitable solvent is described. |
