Preparation of ferrocenes with high fluorous-phase affinities

Ferrocenes bearing either C6F5 or C5F4N substituents undergo ready nucleophilic substitution by fluorous alcohols to yield compounds bearing either 2 or 4 OCH2(CF2)nCF3 “ponytails.” These substituents effect high fluorous-phase affinities as measured by UV-vis spectrophotometry.