The invention relates to new compounds of formulae (IV):
wherein X represents a halogen atom selected from the group consisting of fluorine, chlorine, bromine and iodine, said compounds being useful as precursors and/or intermediates for the preparation of 4,4'dihalobenzophenones of formula (I):
wherein X is as defined above.
本发明涉及式(IV)的新化合物:
其中 X 代表选自
氟、
氯、
溴和
碘的卤素原子,所述化合物可用作制备式 (I) 的 4,4'二卤代
二苯甲酮的前体和/或中间体:
其中 X 如上定义。