The selective semihydrogenation of alkynes plays a crucial role in bulk industry, fine chemistry and chemical research. Examples of relevant applications are found in the hydrocarbon refinery for petrol industry, 1c, 1e, 2 the commercial synthetic routes for Resveratrol or Vitamin A. Thus far, traditional systems for the selective formation of Z-, Eor terminal alkenes consist of Pd/C, Lindlar catalyst, Birch reduction, Raney-Nickel 6 or Wilkinson catalyst. Due to limitations regarding selectivity, activity, amount of produced waste or catalyst price, the study and improvement of these protocols has attracted numerous research groups in academia and industry. Thus, high activity and excellent selectivity-tailoring is being achieved by combining fine-tuned ligands with noble metals such as Ru, 9 Rh, 10 Pd 11 and Ir. 12 During the last decade, the concerns in regard to Green chemistry principles have been grown rapidly and the development of catalysts based on earth-abundant metals for organic transformations has become of very important. In recent years, several reports on selective alkyne semihydrogenations using catalysts based on Cr, Mn, Fe, Co, Ni, Cu 20 are described.