Process for the preparation of .alpha.-fluorostyrene from fluoroolefins: ##STR1## Z=hydrogen, fluorine, chlorine X=iodine, bromine, chlorine. A halogenated aromatic (I) is reacted with a fluorine-substituted ethylene (II) in the presence of a palladium catalyst to give an .alpha.-fluorostyrene (III), it being possible for R to be a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.4 -alkyl group, a C.sub.1 -C.sub.5 -alkoxy group, an amino, alkylamino or dialkylamino group, an aryl radical or a fused aryl or heteroaryl ring, a hydroxyl or hydroxyalkyl group, a trifluoromethyl or perfluoroalkyl group or a nitro group.
从
氟烯烃制备α-
氟基
苯乙烯的方法:## STR1 ##其中,Z为氢、
氟、
氯,X为
碘、
溴、
氯。在
钯催化剂的存在下,将卤代
芳香烃(I)与
氟代
乙烯(II)反应,得到α-
氟基
苯乙烯(III),其中R可以是氢原子、卤素原子、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.5烷氧基、
氨基、烷基
氨基或二烷基
氨基、芳基基团或融合的芳基或杂环基、羟基或羟基烷基、三
氟甲基或
全氟烷基或硝基基团。