A process for preparing 3-alkylsulphanyl-2-chloro-N-(1-alkyl-1H-tetrazol-5-yl)-4-trifluoromethylbenzamides of the formula (I) is described.The substituents R1and R2therein are radicals such as alkyl and substituted phenyl.本發明闡述製備下式(I)之3-烷基硫基-2-氯-N-(1-烷基-1H-四唑-5-基)-4-三氟甲基苯甲醯胺之方法。其中取代基R1及R2係諸如烷基及取代苯基之基團。