Electrochemical Addition of Aryl Halides onto Activated Olefins

2 Electrochemical Addition of Aryl Halides onto Activated Olefins 

With aryl chlorides, for instance with p hloroacetophenone, the addition product is obtained in low yield (20%). When the reaction conditions optimized with methyl vinyl ketone are then applied to the arylation of other activated olefins such as acrylate esters and acrylonitrile, yields are also low due to the formation of the reduction product ArH and the dimer Ar-Ar. However, both the Heck deriva- 

As already mentioned for the electrochemical addition of aryl halides onto olefins, the use of a consumable iron is necessary for the reaction to be catalytic in 

With less reactive aryl chlorides, the chloride is not consumed and only traces of Heck and conjugated addition products are formed. This Heck reaction can not be extended to other types of olefins (acrylonitrile, methyl vinyl ketone, styrene, etc.). 

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