. 4s part of a study on substituted styrenes, vinyl derivatives of fluorinated benzene, toluene and biphenyl have been prepared, with the fluorine located in the benzene ring or in a methyl side chain. In all cases a fluorinated hydrocarbon was the starting point of the syntheses and the problem was thus one of introducing the vinyl substituent.
![1-(2'-fluoro[1,1'-biphenyl]-4-yl)ethan-1-one结构式](https://image.chemsrc.com/caspic/273/345-55-1.png)
