The semi-hydrogenation of alkynols to corresponding enols is a crucial process in the industrial production of pharmaceuticals, agrochemicals, fragrances, and flavors. For example, the hydrogenation of 2-Methyl-3-butyn-2-ol can generate 2-Methyl-3-buten-2-ol, an important intermediate in the synthesis of vitamin E. The synthesis of these enols is usually achieved via semi-hydrogenation of the corresponding alkynols over noble metal-based heterogeneous catalysts. In particular, Pd and Pt have been widely exploited as they demonstrate good activity. However, the selectivity remains usually low at high conversions. Moreover, the cost of noble metals, the necessity for additives and promoters, and the low hydrothermal stability of these catalysts represent significant limitations to their use for industrial processes.