More recently, the group of Noël 8 used an iridium based photocatalyst in the presence of 4hydroxythiophenol as an external hydrogen donor in batch or continuous flow. It should be mentioned that both procedures made use of gaseous trifluoromethyl iodide. In parallel to hydrotrifluoromethylation reactions, selective dimerization of trifluoromethyl styrenes constitutes another interesting task. Indeed, this allows a direct and straightforward strategy to access fluoroalkylated hexestrol derivatives known as nonsteroidal estrogens 9 that so far have been exclusively isolated as byproducts and only in marginal amounts in synthetic protocols or in up to 6 step syntheses. In this context, a direct and straightforward synthetic strategy towards either fluoroalkylated hexestrol derivatives or for the hydrotrifluoromethylation of styrenes will constitute an important step forward, especially if using cheap and easy to handle fluoroalkyl sources (Figure ).