2,4,5-Trihalogenobenzene derivatives of the formula ##STR1## in which R is --COOH, --COCl, --COF, --CN, --CONH.sub.2, --CH.sub.2 OH, --CH.sub.2 Cl, --CHCl.sub.2, --CCl.sub.3 or --CHO, R.sup.1 is H, Cl or F, and R.sup.2 is Cl or F, it only being possible for R.sup.1 or R.sup.2 to be F, and processes for their preparation starting from benzonitriles reacted with potassium fluoride. The novel compounds are intermediates for antibacterials such as quinolone carboxylic acids.
公式为 ##STR1## 的2,4,5-三卤代苯衍
生物,其中R为--COOH,--COCl,--COF,--CN,--CONH.sub.2,--CH.sub.2 OH,--CH.sub.2 Cl,--CHCl.sub.2,--CCl.sub.3或--CHO,R.sup.1为H,Cl或F,R.sup.2为Cl或F,仅R.sup.1或R.sup.2可能为F,并从
苯甲腈与
氟化
钾反应开始制备它们的过程。这些新化合物是喹诺酸类抗菌剂的中间体。