C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 323/22 (2006.01) C07C 319/20 (2006.01)
Patent
CA 2296668
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). (see above formula) 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.
Eto Hiromichi
Kaneko Yasushi
Sato Susumu
Takeda Sunao
Gowling Lafleur Henderson Llp
Ssp Co. Ltd.
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