| 摘要 |
A process for preparing 4-bromoaniline derivatives (such as 4-bromo-2-(4,5-dihydroisoxazol-3-yl)-3-methylaniline) of the formula (I) is disclosed, wherein the process comprising reacting a compound of formula (II) with a brominating agent in the presence of the solvent pyridine, wherein: R1 is C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C8-cycloalkyl, halogen; R2 is C1-C6-alkyl, C1-C6-alkoxy, C3-C8-cycloalkyl, C2-C6-alkenyl, cyano or a heterocyclic radical. |
