ChemInform Abstract: Iron‐Catalyzed Regio‐ and Stereoselective Head‐to‐Tail Dimerization of Styrenes.

Cationic Fe(III) salts catalyze the regioselective head‐to‐tail dimerization of styrene derivatives (I), (III) to afford the dimers (II) and (IV), resp., in good yields and excellent E‐selectivity.