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.
该文中提到的公式为##STR1##,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。该文还介绍了从
苯甲腈与
氟化
钾反应开始制备这些新化合物的过程。这些新化合物是抗菌剂如喹诺酸类的中间体。