Coming of Age: Sustainable Iron‐Catalyzed Cross‐Coupling Reactions

Iron‐catalyzed cross‐coupling reactionshave, over the past years, developed to maturity and today are an integral part of the organic chemist's toolkit. They benefit from low costs, operational simplicity, and high reactivity and thus constitute the “green” sister of the palladium and nickel establishment. This timely Review traces back major achievements, discusses their mechanistic background, and highlights numerous applications to molecular synthesis.