Copper Catalysts: Copper(I) and copper(II) salts are often used to generate carbenes from EDA, particularly in cyclopropanation reactions. Rhodium Catalysts: Rhodium(II) complexes are highly effective for C–H insertion and other carbene transfer reactions. Silver Catalysts: Silver salts can be used for the activation of EDA, offering an alternative to copper and rhodium catalysts. Gold Catalysts: Gold(I) and gold(III) complexes have also been explored for their potential to catalyze reactions involving EDA.