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Ethanol


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The selective synthesis of Z-alkenes in alkyne semihydrogenation relies on the reactivity difference of the catalysts toward the starting materials and the products. In an Ir(III)-catalyzed semihydrogenation with EtOH as hydrogen source, an amine as additive is crucial to promote the alcoholysis. This catalytic system exhibits an unprecedented level of substrate scope, generality, and compatibility.
Z. Huang, Y. Wang, X. Leng, Z. Huang, J. Am. Chem. Soc., 2021, 143, 4809-4843.


A NCP-type pincer iridium complex enables an efficient, mild, chemoselective transfer hydrogenation of unactivated C-C multiple bonds with ethanol, forming ethyl acetate as the sole byproduct. A wide variety of alkenes, including multisubstituted alkyl alkenes, aryl alkenes, and heteroatom-substituted alkenes, as well as heteroarenes and internal alkynes, are suitable substrates.
Y. Wang, Z. Huang, X. Leng, H. Zhu, G. Liu, Z. Huang, J. Am. Chem. Soc., 2018, 140, 4417-4429.


A NCP-type pincer iridium complex enables an efficient, mild, chemoselective transfer hydrogenation of unactivated C-C multiple bonds with ethanol, forming ethyl acetate as the sole byproduct. A wide variety of alkenes, including multisubstituted alkyl alkenes, aryl alkenes, and heteroatom-substituted alkenes, as well as heteroarenes and internal alkynes, are suitable substrates.
Y. Wang, Z. Huang, X. Leng, H. Zhu, G. Liu, Z. Huang, J. Am. Chem. Soc., 2018, 140, 4417-4429.