Ferrocene derivatives. Part 22. Friedel-crafts arylations with chloroferrocenes. A new route to arylferrocenes.
Abstract
In the presence of anhydrous aluminium chloride and aluminium, chloro- and 1,1′-dichloro-ferrocenes act as moderately efficient reagents for the Friedel-Crafts arylation (i.e.‘ferrocenylation’) of simple arenes. Extensive reductive dechlorination also occurs.