申请人:SSP Co., Ltd.
公开号:US06229049B1
公开(公告)日:2001-05-08
The invention relates to a process for preparing a difluoroacetophenone derivative (4) by alkylthionating a compound (1) into a compound (2) and reacting this compound with a compound (3).
wherein X1 is Cl, Br or I, X2 and X3 are independently a halogen atom, H or perfluoroalkyl group, X4 is a halogen atom, R1 is an alkyl, aryl or aralkyl group, and R2 is methyl, ethyl or cyclopropyl group.
本发明涉及一种通过将化合物(1)烷基硫代化成化合物(2),并将该化合物与化合物(3)反应制备二氟乙酰苯酮衍生物(4)的方法。其中,X1为Cl、Br或I,X2和X3分别为卤素原子、氢或全氟烷基,X4为卤素原子,R1为烷基、芳基或芳基烷基,R2为甲基、乙基或环丙基。