The present invention relates to a compound represented by the following general formula (3):
wherein
Ar1 and Ar2 each independently represent a phenyl group, a naphthyl group or a biphenylyl group, wherein these groups may have at least one substituent selected from an alkyl group having 1 to 6 carbon atoms and a trifluoromethyl group;
R1, R2 and R3 each independently represent a hydrogen atom or a methyl group; and
Y1 and Y2 each independently represent a chorine atom, a bromine atom, an iodine atom or a trifluoromethylsulfonyloxy group.
本发明涉及由以下通式(3)代表的化合物:
其中
Ar1和Ar2各自独立地代表苯基、
萘基或
联苯基,其中这些基团可具有至少一个取代基,该取代基选自具有1至6个碳原子的烷基和三
氟甲基;
R1、R2 和 R3 各自独立地代表一个氢原子或一个甲基;以及
Y1 和 Y2 各自独立地代表
氯原子、
溴原子、
碘原子或三
氟甲基磺酰氧基。