Method of preparation of 6-fluoro-2-halogen quinoline of general formula (I) wherein R is a hydrogen atom or an alkyl radical and Hal and Hal' are identical or different halogen atoms. The invention is characterized in that a halogenating agent is made to act on hydroxy-1 quinoline of general formula (II) wherein Hal is defined as above and R.sub.1 is defined as R excepting a hydrogen atom, the acid function being optionally released if a 6-fluoro-2-halogen quinoline is to be obtained for which R is a hydrogen atom.
通式为(I)的6-
氟-2-卤代
喹啉的制备方法,其中R为氢原子或烷基基团,Hal和Hal'为相同或不同的卤素原子。本发明的特征在于,将卤化剂作用于通式为(II)的羟基-1-
喹啉,其中Hal如上所定义,R1除氢原子外与R相同,如果要得到R为氢原子的6-
氟-2-卤代
喹啉,则酸性功能可选择性释放。